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Converting Complex Numbers From Rectangular Form to Trigonometric - Problem 2
We're converting from the rectangular form of a complex number to trigonometric form. Here I have the example z equals -10. Here you have to remember, -10 although it's a real number, is also a
complex number. All real numbers are complex. No... | {"url":"https://www.brightstorm.com/math/precalculus/polar-coordinates-and-complex-numbers/converting-complex-numbers-from-rectangular-form-to-trigonometric-form-problem-2/","timestamp":"2014-04-17T21:24:32Z","content_type":null,"content_length":"72664","record_id":"<urn:uuid:db8df617-2ce7-4343-960d-0cc7bae28100>","cc-... |
Alice's Algebra FTW
Alice’s adventures in algebra: Wonderland solved
16 December 2009, by Melanie Bayley
What would Lewis Carroll’s Alice’s Adventures in Wonderland be without the Cheshire Cat, the trial, the Duchess’s baby or the Mad Hatter’s tea party? Look at the original story that the author told
Alice Liddell and... | {"url":"http://mssia.wordpress.com/2010/03/09/alices-algebra/","timestamp":"2014-04-19T17:15:11Z","content_type":null,"content_length":"72198","record_id":"<urn:uuid:8916c94a-aeeb-49f3-b8d6-8ec48c709583>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00498-ip-10-147-4-33.ec2.internal.... |
Bayes and risk - Statistical Modeling, Causal Inference, and Social Science
Bayes and risk
Someone writes in with the following question:
I’ve been studying Information Technology risk for some time now and so your work is of great interest. In IT risk we have several problems that a Bayesian approach would seem to... | {"url":"http://andrewgelman.com/2007/09/10/bayes_and_risk/","timestamp":"2014-04-17T12:44:40Z","content_type":null,"content_length":"30969","record_id":"<urn:uuid:7eaa4cff-643d-451e-ad33-06ecff588042>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00327-ip-10-147-4-33.ec2.internal.war... |
Lakeside, CO Statistics Tutor
Find a Lakeside, CO Statistics Tutor
...I also attended UC Berkeley as an Engineering major.I took this class at American River College in Sacramento, CA. I received an A, one of the highest grades in the class. I've tutored many
students in this subject over the last 12 years, at both... | {"url":"http://www.purplemath.com/Lakeside_CO_statistics_tutors.php","timestamp":"2014-04-17T15:53:21Z","content_type":null,"content_length":"24308","record_id":"<urn:uuid:68f677bb-7884-46b2-839c-9d5f2cc749e5>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00393-ip-10-147-4-33.ec2.inte... |
Statistical and Machine-Learning Data Mining
• Distinguishes between statistical data mining and machine-learning data mining techniques, leading to better predictive modeling and analysis of big data Illustrates the power of machine-learning
data mining that starts where statistical data mining stops
• Address... | {"url":"http://www.crcpress.com/product/isbn/9781439860915","timestamp":"2014-04-20T13:24:07Z","content_type":null,"content_length":"116832","record_id":"<urn:uuid:b10890d2-ecb6-434f-9d14-ecdd96b85c7e>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00554-ip-10-147-4-33.ec2.internal.wa... |
Quadratic equation
The height of a rocket in metres can be found by the function h(t)... - Homework Help - eNotes.com
Quadratic equation
The height of a rocket in metres can be found by the function h(t) = -4.9t^2+ 540t + 25, where t is the time in seconds. When is the height of ... | {"url":"http://www.enotes.com/homework-help/quadratic-equation-370193","timestamp":"2014-04-16T23:32:22Z","content_type":null,"content_length":"25773","record_id":"<urn:uuid:de1973b2-9039-4d27-9dd5-3dbd059cccf8>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-20140416005205-00642-ip-10-147-4-33.ec2.in... |
Chasing the Parallel Postulate | Roots of Unity, Scientific American Blog Network
Euclidean geometry, codified around 300 BCE by Euclid of Alexandria in one of the most influential textbooks in history, is based on 23 definitions, 5 postulates, and 5 axioms, or “common notions.”
But as I mentioned in my recent post on ... | {"url":"http://blogs.scientificamerican.com/roots-of-unity/2014/02/28/chasing-the-parallel-postulate/?tab=read-posts","timestamp":"2014-04-17T18:41:49Z","content_type":null,"content_length":"107002","record_id":"<urn:uuid:cc5b81bc-a18f-4d1f-bf4c-ad1813d581f9>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/C... |
John Baez
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This is John Baez's personal web on the nnLab. Here’s what I’ve got so far:
• John Baez and Peter May, Towards Higher Categories. (A book.)
• John Baez and James Dolan, Zeta functions. (A paper in progress.)
... | {"url":"http://ncatlab.org/johnbaez/show/HomePage","timestamp":"2014-04-19T20:12:23Z","content_type":null,"content_length":"9530","record_id":"<urn:uuid:30776933-4a39-4ce2-9183-d8ab149144e3>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-00077-ip-10-147-4-33.ec2.internal.warc.gz"} |
Department of Physics and Astronomy - Dartmouth College
Quantum and Condensed Matter Physics
Condensed matter physics is the science of the material world around us. We seek to understand how diverse complex phenomena arise when large numbers of constituents such as electrons, atoms and
molecules interact with each ... | {"url":"http://www.dartmouth.edu/~physics/research/condensed.matter.html","timestamp":"2014-04-19T07:20:11Z","content_type":null,"content_length":"19592","record_id":"<urn:uuid:47a2ef20-be59-479b-a08b-7444da02c5cc>","cc-path":"CC-MAIN-2014-15/segments/1397609536300.49/warc/CC-MAIN-20140416005216-00508-ip-10-147-4-33.ec... |
Marysville, WA Algebra 2 Tutor
Find a Marysville, WA Algebra 2 Tutor
...I have tutored high school level Algebra I for both Public and Private School courses. I also volunteer my time in the Seattle area assisting at-risk students on their mathematics homework. I
have worked as a mathematics teacher in Chicago and ... | {"url":"http://www.purplemath.com/Marysville_WA_algebra_2_tutors.php","timestamp":"2014-04-20T14:02:19Z","content_type":null,"content_length":"24171","record_id":"<urn:uuid:838ea2aa-b0cf-444c-aa17-7e0dfa4958c4>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00531-ip-10-147-4-33.ec2.int... |
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The speed of a moving bullet can be determined by allowing the... | {"url":"http://openstudy.com/updates/50b7f76fe4b0c789d50ff34c","timestamp":"2014-04-18T00:40:33Z","content_type":null,"content_length":"39802","record_id":"<urn:uuid:b23b167c-40c8-439b-91e8-c8d38abd5469>","cc-path":"CC-MAIN-2014-15/segments/1398223203235.2/warc/CC-MAIN-20140423032003-00489-ip-10-147-4-33.ec2.internal.w... |
Edgemoor, DE Trigonometry Tutor
Find an Edgemoor, DE Trigonometry Tutor
...Routinely score 800/800 on practice tests. Able to help students improve reading comprehension through specific test-taking strategies and pinpoint necessary areas of vocabulary improvement.
Scored 800/800 on January 26, 2013 SAT Writing exa... | {"url":"http://www.purplemath.com/edgemoor_de_trigonometry_tutors.php","timestamp":"2014-04-19T12:17:49Z","content_type":null,"content_length":"24456","record_id":"<urn:uuid:791924fb-363a-4a73-bcd5-8c46fcc28539>","cc-path":"CC-MAIN-2014-15/segments/1397609537186.46/warc/CC-MAIN-20140416005217-00598-ip-10-147-4-33.ec2.i... |
plot 2 axes y in the same figure
Thanks to everyone, I understood the plotyy function:
y1=1./(1+exp(-x)); % sigmoid function (blue solid line)
y2=y1; % green dashed line
set(ax(2),'YDir','reverse') % change the direction of the right-y axe
set(h2,'LineStyle',':') % change the style of the second curve
set(ax(1),'xlim',... | {"url":"http://www.mathworks.com/matlabcentral/newsreader/view_thread/271890","timestamp":"2014-04-17T04:26:33Z","content_type":null,"content_length":"35759","record_id":"<urn:uuid:49f4f29c-40f1-4b6e-b521-8dc1fa456d72>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00382-ip-10-147-4-3... |
9. A potpourri of mathematical egg curves
Eggs vary in origin, color, size and shape: there are bird eggs and snake eggs, white eggs and eggs in every other color of the rainbow, large and heavy eggs like Ostrich eggs, and Hummingbird eggs
weighing about half a gram, and round eggs and eggs with conical tops. See Figur... | {"url":"http://www.maa.org/external_archive/joma/Volume8/Heck/Eggcurves.html","timestamp":"2014-04-17T20:17:54Z","content_type":null,"content_length":"10629","record_id":"<urn:uuid:6282478d-3db9-4174-aa8c-fb0fa5aef24b>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-20140416005210-00600-ip-10-147-4-3... |
Trace Termination
[Series Termination] [Parallel Termination] [Thevenin Termination]
[AC Termination] [Differential Termination] [Termination Examples]
... | {"url":"http://www-atom.fysik.lth.se/QI/laser_documentation/Selected_articles/Design_Termination.html","timestamp":"2014-04-20T15:50:21Z","content_type":null,"content_length":"47679","record_id":"<urn:uuid:0f16e765-8a58-4c35-b187-8151129c457a>","cc-path":"CC-MAIN-2014-15/segments/1398223206770.7/warc/CC-MAIN-2014042303... |
Little Neck Algebra 1 Tutor
Find a Little Neck Algebra 1 Tutor
...Lastly, I am an avid fan of the various hotkeys and tricks available to users running OS X, and would love to help students on wyzant.com improve their Macintosh skills. In 2012 I graduated
with a B.S. in mechanical engineering from Columbia Universi... | {"url":"http://www.purplemath.com/Little_Neck_algebra_1_tutors.php","timestamp":"2014-04-16T13:12:55Z","content_type":null,"content_length":"23937","record_id":"<urn:uuid:1598b325-fd6a-4834-b094-088b71ad9c43>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00435-ip-10-147-4-33.ec2.inte... |
integration problem
November 8th 2009, 08:20 PM #1
Oct 2009
integration problem
this is a L-R Series Circuit with
V= 240 cos 10t
R= 100 Ohm
L= 20 Henry
It asks to find current in circuit at any time if initially there is no current.
this is from my lecture notes so there is a step im not sur... | {"url":"http://mathhelpforum.com/calculus/113365-integration-problem.html","timestamp":"2014-04-16T10:49:58Z","content_type":null,"content_length":"42004","record_id":"<urn:uuid:977f432d-5009-4bcc-958d-b21f10edebff>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00353-ip-10-147-4-33.e... |
Normal Distribution
May 17th 2009, 08:09 AM #1
Normal Distribution
Suppose that a machine filling bottles of paediatric liquid paracetamol fills the bottles so that the mean volume of the bottles is 250ml with a standard deviations of 20ml.
If a bottle is selected at random what is the probability that:
i) ... | {"url":"http://mathhelpforum.com/statistics/89353-normal-distribution.html","timestamp":"2014-04-16T04:17:10Z","content_type":null,"content_length":"34112","record_id":"<urn:uuid:4011540f-e12a-4eea-8aa0-282be9f0df64>","cc-path":"CC-MAIN-2014-15/segments/1397609521512.15/warc/CC-MAIN-20140416005201-00051-ip-10-147-4-33.... |
WjPs(1Zc. POLICY RESEARCH WORKING PAPER 188. A4 e, .,Ufss e., he Economic Transition MdJrsl sgeth Ap M ;rfhe -n; and the Distributions a of Income and Wealth mark'tSy4,of'the '- .pd ??3j pubi goo ; -
rPer. ,th~t prevent the Francisco H. G. Ferreira --tne tivate sec and eWnsirq tha t.subl - .e nets, ae in place. The Wor... | {"url":"http://www-wds.worldbank.org/external/default/WDSContentServer/IW3P/IB/2000/02/24/000009265_3971104185015/Rendered/INDEX/multi_page.txt","timestamp":"2014-04-16T07:15:25Z","content_type":null,"content_length":"91372","record_id":"<urn:uuid:3a21bf9b-434c-4224-b16a-e746e1dff7cb>","cc-path":"CC-MAIN-2014-15/segmen... |
Volume distortion for subsets of euclidean spaces, Discrete Comput. Geom
"... The bandwidth of a graph G on n vertices is the minimum b such that the vertices of G can be labeled from 1 to n such that the labels of every pair of adjacent vertices differ by at most b. In
this paper, we present a 2-approximation algorith... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=1109532","timestamp":"2014-04-18T08:42:03Z","content_type":null,"content_length":"24976","record_id":"<urn:uuid:76d0d44e-45ad-452b-9618-6edc7d23c878>","cc-path":"CC-MAIN-2014-15/segments/1397609533121.28/warc/CC-MAIN-20140416005213-00004-ip-10-147-4-33.ec2.internal.wa... |
Intuition for coordinate patches on Proj of a graded ring.
up vote 4 down vote favorite
Hi Mathoverflow. This question is about building intuition for the Proj construction. When I first started learning about schemes, I found the construction of the structure sheaves on Spec and Proj
very confusing. However, after eno... | {"url":"http://mathoverflow.net/questions/132778/intuition-for-coordinate-patches-on-proj-of-a-graded-ring/132783","timestamp":"2014-04-21T03:01:41Z","content_type":null,"content_length":"66240","record_id":"<urn:uuid:8ceab104-830b-4fe8-be6a-bf9af84da02b>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MA... |
[[Div(start, class=clear)]][[Div(end)]]
The purpose of the ACUTE tool-based curricula is to introduce interested scientists from Academia and Industry in advanced simulation methods needed for proper modeling of state-of-the-art nanoscale
devices. The multiple scale transport in doped semiconductors is summarized in th... | {"url":"http://nanohub.org/topics/ACUTE?version=6&format=raw","timestamp":"2014-04-19T09:43:15Z","content_type":null,"content_length":"17341","record_id":"<urn:uuid:4f6ea2b9-c658-45b3-a20c-55969e794d02>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20140416005217-00596-ip-10-147-4-33.ec2.internal.w... |
Dennis Parnell Sullivan
Born: 12 February 1941 in Port Huron, Michigan, USA
... | {"url":"http://www-history.mcs.st-andrews.ac.uk/Biographies/Sullivan.html","timestamp":"2014-04-19T11:57:52Z","content_type":null,"content_length":"29677","record_id":"<urn:uuid:77ab0479-2c49-435d-9ef3-680bcbfb1efc>","cc-path":"CC-MAIN-2014-15/segments/1397609537186.46/warc/CC-MAIN-20140416005217-00624-ip-10-147-4-33.e... |
PLEASE HELP..its easy
March 29th 2006, 04:16 AM #1
PLEASE HELP..its easy
(4xexponet2)exponent 3
it amounts to 12exponent8......you power it to 3.
but in this equation it different..
(x exponentnegativ2 y exp.3) outside 2......... x ex. negative four y ex.6.............
im sorry it may seem wierd to ... | {"url":"http://mathhelpforum.com/algebra/2390-please-help-its-easy.html","timestamp":"2014-04-18T07:23:09Z","content_type":null,"content_length":"37398","record_id":"<urn:uuid:e28f1679-c118-4678-9c7b-29954d9afd38>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-20140416005212-00392-ip-10-147-4-33.ec2... |
188 helpers are online right now
75% of questions are answered within 5 minutes.
is replying to Can someone tell me what button the professor is hitting...
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Thanks... | {"url":"http://openstudy.com/users/theeric/medals","timestamp":"2014-04-17T01:35:45Z","content_type":null,"content_length":"113726","record_id":"<urn:uuid:0b2d260f-e5e5-4e88-8c8e-55f29d1c8ba1>","cc-path":"CC-MAIN-2014-15/segments/1397609526102.3/warc/CC-MAIN-20140416005206-00608-ip-10-147-4-33.ec2.internal.warc.gz"} |
Plandome, NY ACT Tutor
Find a Plandome, NY ACT Tutor
...Contact me, and I'll help you improve your grades in no time!In 2009, I received a Bachelor of Science degree (with honors) in Computer Science from Loyola College in Maryland. While in
college, I tutored students in Java for several years. I also co-taught an... | {"url":"http://www.purplemath.com/Plandome_NY_ACT_tutors.php","timestamp":"2014-04-16T13:54:08Z","content_type":null,"content_length":"24061","record_id":"<urn:uuid:66c2d5dc-25bf-4276-b38b-0e55a527d588>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00541-ip-10-147-4-33.ec2.internal.w... |
Taylor formula for function of 2 variables
November 8th 2009, 08:53 AM #1
Nov 2009
Taylor formula for function of 2 variables
Hi! Could anyone help me with this question? I'm unable to sleep as I haven't found the solution!
Find the first and second-degree Taylor polynomials of
f(x, y) = e^(-x^2 - y^2)
... | {"url":"http://mathhelpforum.com/calculus/113191-taylor-formula-function-2-variables.html","timestamp":"2014-04-17T08:13:45Z","content_type":null,"content_length":"38774","record_id":"<urn:uuid:e4e1c65b-314f-43f1-9b4a-d04d55ba164a>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00080-... |
Improving neural networks training using experiment design approach
Chong, Wei Kean (2005) Improving neural networks training using experiment design approach. Masters thesis, Universiti Teknologi Malaysia, Faculty of Electrical Engineering.
This project involves the use of Neural Networks (NN) for function approximati... | {"url":"http://eprints.utm.my/3580/","timestamp":"2014-04-24T20:01:28Z","content_type":null,"content_length":"18927","record_id":"<urn:uuid:8db7584f-f5af-480d-9b36-24c0841cce31>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140423032006-00614-ip-10-147-4-33.ec2.internal.warc.gz"} |
Proof math problem help? Please help if you can!
Number of results: 299,652
Please help me with this problem: A bourbon that is 51 proof is 25.5% alcohol by volume while one that is 82 proof is 41% alcohol. How many liters of 51 proof bourbon must be mixed with 1.0 L of 82
proof bourbon to produce a 66 proof bourbon? G... | {"url":"http://www.jiskha.com/search/index.cgi?query=Proof+math+problem+help%3F+Please+help+if+you+can!","timestamp":"2014-04-20T14:19:19Z","content_type":null,"content_length":"39626","record_id":"<urn:uuid:686ee29c-13b8-4ce7-9433-4d4bc7f5e563>","cc-path":"CC-MAIN-2014-15/segments/1398223205375.6/warc/CC-MAIN-20140423... |
Programming Languages
I haven't seen this discussed here yet: http://www.puzzlescript.net/
It is an HTML5-based puzzle game engine that uses a simple language for patterns and substitutions to describe game rules. For example (taken from their introduction), the basic block-pushing logic
of a Sokoban game can be given... | {"url":"http://lambda-the-ultimate.org/node?from=20","timestamp":"2014-04-17T12:41:01Z","content_type":null,"content_length":"29403","record_id":"<urn:uuid:aa3e2345-721a-4000-8fa3-6ea322348cba>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00155-ip-10-147-4-33.ec2.internal.warc.gz"} |
Finding mathematical equations in nature
From the blue-and-black symmetries of a butterfly TO the mazelike grooves of a brain coral, nature reveals itself as a great artist, switching off between painting and sculpture. Nature should also
get credit, though, for being a first-class mathematician. The patterns and shape... | {"url":"http://discovermagazine.com/1992/may/shellgame41","timestamp":"2014-04-16T22:00:54Z","content_type":null,"content_length":"66014","record_id":"<urn:uuid:1712c487-3fe0-4697-be2e-8d6a9bb43b10>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-20140416005205-00157-ip-10-147-4-33.ec2.internal.warc.g... |
Polynomial Degrees and Definition of a Field
Date: 03/02/98 at 11:51:19
From: Seb Metelli
Subject: rings, fields, vector spaces...
Dear Dr. Math:
I'm a student in a European (read: run by Brussels) school in northern
Italy. At the moment in advanced maths, we're studying groups of
different sorts, combining them with p... | {"url":"http://mathforum.org/library/drmath/view/51473.html","timestamp":"2014-04-20T12:19:32Z","content_type":null,"content_length":"7906","record_id":"<urn:uuid:da459707-85d1-4be9-9479-591403dd9f71>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00307-ip-10-147-4-33.ec2.internal.war... |
Lodi, NJ Math Tutor
Find a Lodi, NJ Math Tutor
...I have also been an adjunct professor at the College of New Rochelle, Rosa Parks Campus. As for teaching style, I feel that the concept drives the skill. If you have the idea of what to do on
a problem, you do not need to complete 10 similar problems.
26 Subjects:... | {"url":"http://www.purplemath.com/Lodi_NJ_Math_tutors.php","timestamp":"2014-04-18T01:01:12Z","content_type":null,"content_length":"23696","record_id":"<urn:uuid:7e2f885b-11e8-484a-ba45-3a6d61b73661>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-20140416005212-00562-ip-10-147-4-33.ec2.internal.warc... |
Digital Signal Processing Tools
Next: Data Fitting Tools Up: SDDS Toolkit Programs by Previous: Statistics Tools Contents
• sddsconvolve -- Does FFT convolution, deconvolution, and correlation. Example application: computing the ideal impulse response of a system after you've measured the response to a pulse.
... | {"url":"http://www.aps.anl.gov/Accelerator_Systems_Division/Accelerator_Operations_Physics/manuals/SDDStoolkit/node18.html","timestamp":"2014-04-16T19:58:35Z","content_type":null,"content_length":"3366","record_id":"<urn:uuid:39807fb3-8d0f-4495-81b5-84372975aa29>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/wa... |
Gamma function: Introduction to the gamma functions
Introduction to the gamma functions
The gamma function is applied in exact sciences almost as often as the well‐known factorial symbol . It was introduced by the famous mathematician L. Euler (1729) as a natural extension of the
factorial operation from positive integ... | {"url":"http://functions.wolfram.com/GammaBetaErf/Gamma/introductions/Gammas/ShowAll.html","timestamp":"2014-04-20T08:29:55Z","content_type":null,"content_length":"185650","record_id":"<urn:uuid:1096508f-de7a-4f0b-8315-07e4b5cb9970>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00129... |
Equally Likely Outcomes
The outcomes of a sample space are called equally likely if all of them have the same chance of occurrence. It is very difficult to decide whether or not the outcomes are equally likely. But in this
tutorial we shall assume in most of the experiments that the outcomes are equally likely. We shal... | {"url":"http://www.emathzone.com/tutorials/basic-statistics/equally-likely-outcomes.html","timestamp":"2014-04-19T22:12:35Z","content_type":null,"content_length":"19297","record_id":"<urn:uuid:51596eea-0206-4f77-871f-52af9cebf80e>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00203-i... |
Algebraic (semi-) Riemannian geometry ?
up vote 17 down vote favorite
I hope these are not to vague questions for MO.
Is there an analog of the concept of a Riemannian metric, in algebraic geometry?
Of course, transporting things literally from the differential geometric context, we have to forget about the notion of p... | {"url":"http://mathoverflow.net/questions/19337/algebraic-semi-riemannian-geometry","timestamp":"2014-04-20T18:34:25Z","content_type":null,"content_length":"64393","record_id":"<urn:uuid:4c309888-d626-4b3a-9a93-12258acb99e4>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00486-ip-10-1... |
Mplus Programs
The Mplus Base Program estimates regression, path analysis, exploratory and confirmatory factor analysis (EFA and CFA), structural equation (SEM), growth, and discrete- and continuous-time survival
analysis models. In regression and path analysis models, observed dependent variables can be continuous, ce... | {"url":"https://www.statmodel.com/programs.shtml","timestamp":"2014-04-21T03:38:42Z","content_type":null,"content_length":"15809","record_id":"<urn:uuid:1e25cac6-5a92-4bc2-8067-030d40664c1f>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-00141-ip-10-147-4-33.ec2.internal.warc.gz"} |
Mathematical Genius/Paranoid Schizophrenic
Winner of the Nobel Prize in Economics in 1994
John Forbes Nash Jr. was born in Bluefield,
West Virginia
in 1928. His father was an
electrical engineer
and his mother, a teacher. Bluefield was sort of a
mining town
in the
and so Nash resorted to reading to explore the outside ... | {"url":"http://everything2.com/title/John+Nash?showwidget=showCs1256161","timestamp":"2014-04-20T21:58:20Z","content_type":null,"content_length":"38900","record_id":"<urn:uuid:aee4a656-a71e-4478-8fdf-cc6aeb9eb0fc>","cc-path":"CC-MAIN-2014-15/segments/1398223207985.17/warc/CC-MAIN-20140423032007-00581-ip-10-147-4-33.ec2... |
The unsolvable problem
I was given this
by my
teacher in Grade 9, and I still don't know the
, or even
there is an answer. That was six years ago...
* * *
# # #
The three asterisks represent three utilities, the three number signs represent three houses. The idea is to conn... | {"url":"http://everything2.com/title/The+unsolvable+problem","timestamp":"2014-04-19T04:58:39Z","content_type":null,"content_length":"22562","record_id":"<urn:uuid:d9f7fe85-bf8b-4bf2-9e3c-6bee6a596c8a>","cc-path":"CC-MAIN-2014-15/segments/1398223207985.17/warc/CC-MAIN-20140423032007-00108-ip-10-147-4-33.ec2.internal.wa... |
Chemistry: Rate Laws: Reaction Rate, Concentration Video | MindBites
Chemistry: Rate Laws: Reaction Rate, Concentration
About this Lesson
• Type: Video Tutorial
• Length: 12:56
• Media: Video/mp4
• Use: Watch Online & Download
• Access Period: Unrestricted
• Download: MP4 (iPod compatible)
• Size: 138 MB
... | {"url":"http://www.mindbites.com/lesson/4977-chemistry-rate-laws-reaction-rate-concentration","timestamp":"2014-04-20T21:49:37Z","content_type":null,"content_length":"64775","record_id":"<urn:uuid:1fd9e5eb-4034-4065-ac4e-d07a1e24a30e>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-003... |
Linear Interpolation FP1 Formula
Re: Linear Interpolation FP1 Formula
He gave his last lecture at MIT a couple of years ago. He is supposed to be one of the best lecturers out there -- and I can believe that for sure, particularly if what he says about how much effort
he puts into his lectures is true...
Re: Linear Int... | {"url":"http://www.mathisfunforum.com/viewtopic.php?id=17344&p=513","timestamp":"2014-04-19T05:21:19Z","content_type":null,"content_length":"35480","record_id":"<urn:uuid:104ec2c1-3be0-4b98-87b3-5fa7d3ba7e0c>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140416005215-00418-ip-10-147-4-33.ec2.inte... |
Structure of the φ photoproduction amplitude at a few GeV
The structure of the $\phi$ photoproduction amplitude in the $\sqrt{s}\sim 2-5\mathrm{GeV}$ region is analyzed based on Pomeron-exchange and meson-exchange mechanisms. The SU(3) symmetry and the $\
phi$ decay widths are exploited to determine the parameters that... | {"url":"http://journals.aps.org/prc/abstract/10.1103/PhysRevC.60.035205","timestamp":"2014-04-19T14:43:30Z","content_type":null,"content_length":"27420","record_id":"<urn:uuid:7be76dfa-66b2-4de4-b9dc-0932921b37ff>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-00131-ip-10-147-4-33.ec2.... |
Homework Help
Posted by Jen on Wednesday, April 24, 2013 at 1:13pm.
Solve the rational equation.
Related Questions
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algebra - how would i solve this rational equati... | {"url":"http://www.jiskha.com/display.cgi?id=1366823629","timestamp":"2014-04-20T02:11:13Z","content_type":null,"content_length":"7872","record_id":"<urn:uuid:6b99b7ec-920f-4c2a-9be0-0399e4dfb2b4>","cc-path":"CC-MAIN-2014-15/segments/1398223210034.18/warc/CC-MAIN-20140423032010-00062-ip-10-147-4-33.ec2.internal.warc.gz... |
MATHEMATICA BOHEMICA, Vol. 127, No. 2, pp. 211-218 (2002)
Probabilistic analysis of singularities for
the 3D Navier-Stokes equations
... | {"url":"http://www.kurims.kyoto-u.ac.jp/EMIS/journals/MB/127.2/9.html","timestamp":"2014-04-20T20:57:15Z","content_type":null,"content_length":"3139","record_id":"<urn:uuid:4ec97ac6-507e-4ce2-8672-66561741fe8a>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-00499-ip-10-147-4-33.ec2.in... |
Help with Trig Identities exercise.
November 15th 2012, 08:43 AM #1
Nov 2012
United States
Help with Trig Identities exercise. (unsolved)
Ok, I'm supposed to find sin $\theta$ when cos $\theta$ = $\frac{1}{3}$. The answer is $\frac{2\sqrt{2}}{3}$. I got $\sqrt{\frac{8}{9}$. Does this somehow simplify to the... | {"url":"http://mathhelpforum.com/trigonometry/207669-help-trig-identities-exercise.html","timestamp":"2014-04-18T01:42:53Z","content_type":null,"content_length":"51654","record_id":"<urn:uuid:d3847c41-d07a-464f-b4f2-df30a8b80ae5>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-20140416005212-00071-ip... |
Upper Marlboro Precalculus Tutor
Find an Upper Marlboro Precalculus Tutor
...I re-located to u.s in October 2008 where i took up a part-time appointment with prince George's community college as an academic tutor in developmental mathematics. I have passion, interest
and skill for mathematics. I tried to use real l... | {"url":"http://www.purplemath.com/upper_marlboro_md_precalculus_tutors.php","timestamp":"2014-04-18T23:25:58Z","content_type":null,"content_length":"24301","record_id":"<urn:uuid:567038b8-32b6-47f3-8922-69e7170e2566>","cc-path":"CC-MAIN-2014-15/segments/1397609535535.6/warc/CC-MAIN-20140416005215-00135-ip-10-147-4-33.e... |
I was a Program in Computing Assistant Adjunct Professor in the Department of Mathematics at UCLA (2007-2011) and am a SAGEvangelist (2005-).
Faculty Application 2011-2012
1. Cover Letter
2. Curriculum Vitae
3. Written Work
4. Research Statement
5. Teaching Statement
1. Deciding whether the p-torsion group of the Q_p-r... | {"url":"http://wiki.sagemath.org/IftikharBurhanuddin","timestamp":"2014-04-20T08:56:03Z","content_type":null,"content_length":"28148","record_id":"<urn:uuid:31da82fa-a37d-4f4b-b9f1-8e7635ab36ba>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00244-ip-10-147-4-33.ec2.internal.warc.gz"} |
Fachbereich Physik
14 search hits
Batalin-Vilkovisky Field-Antifield Quantisation of Fluctuations around Classical Field Configurations; (1996)
F. Zimmerschied
Sigma models with A_k singularities in Euclidean spacetime of dimension 0<=D<4 and in the limit N->infinity (1996)
J. Maeder W. Rühl
For the case of the sin... | {"url":"https://kluedo.ub.uni-kl.de/solrsearch/index/search/searchtype/collection/id/15998/start/10/rows/10/yearfq/1996","timestamp":"2014-04-19T19:38:58Z","content_type":null,"content_length":"27256","record_id":"<urn:uuid:9c36a34d-c14a-467c-aa2d-a7174650353e>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc... |
Honors Theory of Computation
Honors Theory of Computation (G22.3350)
Lecture Summaries
These lecture summaries can be viewed as the "past tense" ... | {"url":"http://cs.nyu.edu/courses/spring03/G22.3350-001/syllabus.html","timestamp":"2014-04-17T12:30:51Z","content_type":null,"content_length":"13643","record_id":"<urn:uuid:b64b1735-78f0-4c75-aea0-68612db1f540>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00489-ip-10-147-4-33.ec2.i... |
Mapping cDNAs
Barbara Baker bake at ENZYME.BERKELEY.EDU
Sat Feb 1 04:47:05 EST 1992
> ..there were several suggestions that one should probe the ordered YACs
> with labelled cDNA probes. This is fine on a small scale. However, if
> we assume that there are about 20,000 cDNAs in the plant, this is an
> unattractive num... | {"url":"http://www.bio.net/hypermail/arabidopsis/1992-February/000088.html","timestamp":"2014-04-18T10:42:51Z","content_type":null,"content_length":"3994","record_id":"<urn:uuid:5e7f9f4c-d437-49a0-a0bf-439102f26c84>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00564-ip-10-147-4-33.e... |
Question 9 of my final exam for Design and Analysis of Sample Surveys - Statistical Modeling, Causal Inference, and Social Science
Question 9 of my final exam for Design and Analysis of Sample Surveys
9. Out of a population of 100 medical records, 40 are randomly sampled and then audited. 10 out of the 40 audits reveal... | {"url":"http://andrewgelman.com/2012/05/19/question-9-of-my-final-exam-for-design-and-analysis-of-sample-surveys/","timestamp":"2014-04-16T07:38:34Z","content_type":null,"content_length":"23765","record_id":"<urn:uuid:ae3ff138-ecdb-47bd-8b16-fea507c99896>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MA... |
Video Library
Since 2002 Perimeter Institute has been recording seminars, conference talks, and public outreach events using video cameras installed in our lecture theatres. Perimeter now has 7 formal presentation
spaces for its many scientific conferences, seminars, workshops and educational outreach activities, all w... | {"url":"http://www.perimeterinstitute.ca/video-library?title=&page=613","timestamp":"2014-04-17T11:28:27Z","content_type":null,"content_length":"67120","record_id":"<urn:uuid:933686bc-5cb2-4d3e-9467-ebcb8bf8c649>","cc-path":"CC-MAIN-2014-15/segments/1397609527423.39/warc/CC-MAIN-20140416005207-00170-ip-10-147-4-33.ec2.... |
The North American Fly Fishing Forum - View Single Post - What to do when water is moving 500 cfs plus?
When addressing the discharge of a stream, most of the reporting sites do in fact gage the discharge in cfs (cubic feet per second). This is the quantity of discharge going through the controlling
gates, weirs, or g... | {"url":"http://www.theflyfishingforum.com/forums/173-post4.html","timestamp":"2014-04-19T22:12:58Z","content_type":null,"content_length":"20620","record_id":"<urn:uuid:f2f654a8-044e-4531-bba9-d9393461e97b>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00575-ip-10-147-4-33.ec2.interna... |
Mplus Discussion >> Repeated Measures SEM
Simon Taggar posted on Friday, August 31, 2001 - 9:16 am
In a study I conducted, I had subjects rate multiple stimuli that represent different levels of within subjects, independent variables. I have a situation containing variance due to subjects,
variance due to manipulations... | {"url":"http://www.statmodel.com/cgi-bin/discus/discus.cgi?pg=prev&topic=11&page=144","timestamp":"2014-04-17T09:39:11Z","content_type":null,"content_length":"80844","record_id":"<urn:uuid:ffa972f8-11c1-4335-aa9e-4703902e53de>","cc-path":"CC-MAIN-2014-15/segments/1397609527423.39/warc/CC-MAIN-20140416005207-00054-ip-10... |
Any progress on the Firoozbakht Conjecture?
up vote 11 down vote favorite
Let $p_n$ be the n-th prime. The Firoozbakht Conjecture is a lesser known conjecture in the theory of primes but it has important consequences. It states that
$$ p_n^{\frac{1}{n}} > p_{n+1}^{\frac{1}{n+1}} $$
This truth of this immediately imply ... | {"url":"http://mathoverflow.net/questions/90327/any-progress-on-the-firoozbakht-conjecture?sort=votes","timestamp":"2014-04-19T18:06:23Z","content_type":null,"content_length":"52416","record_id":"<urn:uuid:0c43aabc-24e4-4bb6-ac3c-63234dfdb2c6>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-201404160... |
Quotients of Abelian Groups
up vote 0 down vote favorite
Let $G$ be an abelian group and let $A$ and $B$ be subgroups of $G$. Furthermore, let $C$ be a subgroup of $A \cap B$. I would like to find another subgroup $A+B \subseteq D \subseteq G$ so that $D/
(A+B) \cong (A \cap B)/C$. In general I'm not sure this is possi... | {"url":"https://mathoverflow.net/questions/122727/quotients-of-abelian-groups","timestamp":"2014-04-20T01:39:47Z","content_type":null,"content_length":"48865","record_id":"<urn:uuid:80e82ef9-7075-4cac-bba4-fdc1df5547f4>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00352-ip-10-147-4-... |
Exercise 1.3
Home | 18.013A | Chapter 1 | Section 1.2 Tools Glossary Index Up Previous Next
Exercise 1.3
Prove or disprove: a countable set of countable sets is countable.
The argument just used for Exercise 1.2 applied to any two countable sets as row and column indices gives the general fact: a countable set of cou... | {"url":"http://ocw.mit.edu/ans7870/18/18.013a/textbook/HTML/chapter01/exercise03.html","timestamp":"2014-04-20T15:56:47Z","content_type":null,"content_length":"2063","record_id":"<urn:uuid:909948df-016f-454c-a8ad-798461d3bb32>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00539-ip-10... |
Homework Help
Posted by Nina on Wednesday, May 30, 2012 at 6:44pm.
Test corrections :) They're calculations/short answers. I'd just like something to compare answers to or help me get the full answer (all partial credits). Thanks!
#9. When water is electrolyzed it produces hydrogen and oxygen. If 10.0% of 150.0g of wat... | {"url":"http://www.jiskha.com/display.cgi?id=1338417882","timestamp":"2014-04-19T21:38:19Z","content_type":null,"content_length":"11898","record_id":"<urn:uuid:cdade04d-34bf-4ffb-a15d-3f541ab79b22>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00087-ip-10-147-4-33.ec2.internal.warc.gz... |
Bayes' theorem problem
Pages: 1 2
Post reply
Re: Bayes' theorem problem
Got it,
Thanks bobbyM and gAr
So after all this isn't related to Bayes'?
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devi... | {"url":"http://www.mathisfunforum.com/viewtopic.php?id=19185&p=2","timestamp":"2014-04-21T09:39:47Z","content_type":null,"content_length":"38336","record_id":"<urn:uuid:efd2491a-0c4f-456b-80de-f38fc03a6268>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00174-ip-10-147-4-33.ec2.interna... |
Why Power is Zero (0), in Pure Inductive, Pure Capacitive or a circuit in which Current and Voltage are 90 Degree out of phase?
Why Power is Zero (0), in Pure Inductive, Pure Capacitive or a circuit in which Current and Voltage are 90 Degree out of phase?
1. Why Power in a circuit is Zero (0), in which Current and Volt... | {"url":"http://www.electricaltechnology.org/2013/05/why-power-in-pure-inductive-circuit-is.html","timestamp":"2014-04-18T10:43:00Z","content_type":null,"content_length":"198884","record_id":"<urn:uuid:a5316795-3d7b-4a5b-9114-52c2c20d3806>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213... |
finding the median from a list of unsorted numbers
My data has a column of numbers which are unsorted. The data is updated on a
regular basis so physically sorting in ascending order is not possible.
I need excel to some how automatically sort the numbers into ascending
order, count the total number of numbers and find... | {"url":"http://www.excelbanter.com/showthread.php?t=135728","timestamp":"2014-04-17T12:59:59Z","content_type":null,"content_length":"40195","record_id":"<urn:uuid:5fffecc4-83e7-4cb7-8da0-3df3c2026566>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00214-ip-10-147-4-33.ec2.internal.war... |
Murray Cantor
One of the common criticisms of estimation methods is that the calculation is no better than the assumptions: garbage in, garbage out (affectionately known as GIGO). That is, if you make poor or
dishonest assumptions then you will get misleading forecasts. It is especially egregious that occasionally so... | {"url":"https://www.ibm.com/developerworks/mydeveloperworks/blogs/RationalBAO/tags/gigo?maxresults=15&sortby=3&lang=en","timestamp":"2014-04-23T12:28:43Z","content_type":null,"content_length":"90452","record_id":"<urn:uuid:cbf39cd5-7751-4f25-bf38-cddd879cf75b>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/... |
Pass the Candy!
Logic puzzles require you to think. You will have to be logical in your reasoning.
Category: Logic
Submitted By: eighsse
A group of 9 friends have a package of 40 W&W's chocolate candies to share. They each, one at a time, take a prime number of W&W's to eat. After that, the bag is empty. Exactly ... | {"url":"http://www.braingle.com/wii/brainteasers/teaser.php?id=49956","timestamp":"2014-04-20T08:46:00Z","content_type":null,"content_length":"10981","record_id":"<urn:uuid:31a9a523-c7f3-4170-b535-60930470906c>","cc-path":"CC-MAIN-2014-15/segments/1398223204388.12/warc/CC-MAIN-20140423032004-00032-ip-10-147-4-33.ec2.in... |
Teaching Textbooks Inc Teaching Textbooks Math 3 CD-Roms Only
Perfect for families that already own the Teaching Textbooks
Teaching Textbooks 3 Workbook and Answer Key
, this set includes four CD-ROMs that contain step-by-step audiovisual solutions to each homework and test problem. Topics covered include adding and su... | {"url":"http://answers.christianbook.com/answers/2016/product/859052/teaching-textbooks-inc-teaching-textbooks-math-3-cd-roms-only-questions-answers/questions.htm","timestamp":"2014-04-18T19:28:50Z","content_type":null,"content_length":"59712","record_id":"<urn:uuid:553d8fde-244f-42bd-87aa-408dd32ce8c1>","cc-path":"CC-... |
The Bounce of the Superball
The commercially available 'Superball' of hard rough rubber displays many counterintuitive properties which seem to violate Newton's laws of motion. We will see that the Superball can be understood
but its behaviour is completely different to a billiard ball when it undergoes collisions with... | {"url":"http://www.gresham.ac.uk/lectures-and-events/the-bounce-of-the-superball","timestamp":"2014-04-19T00:22:14Z","content_type":null,"content_length":"92077","record_id":"<urn:uuid:25904731-c847-4b84-8eb5-d63f7c735434>","cc-path":"CC-MAIN-2014-15/segments/1397609535535.6/warc/CC-MAIN-20140416005215-00049-ip-10-147-... |
Hough circles in OpenCV
OpenCV comes along with an already made function that detects circles using the hough transform. The Circle Hough Transform is a little inefficient at detecting circles, so it uses the gradient
method of detecting circles using the hough transform. Anyway, you don’t need to know the details abou... | {"url":"http://www.aishack.in/2010/04/hough-circles-in-opencv/","timestamp":"2014-04-20T08:46:39Z","content_type":null,"content_length":"34525","record_id":"<urn:uuid:349020d4-dd3c-4cbc-bd40-8594b914423b>","cc-path":"CC-MAIN-2014-15/segments/1398223204388.12/warc/CC-MAIN-20140423032004-00331-ip-10-147-4-33.ec2.internal... |
The Use of Cube Puzzle and Toilet Paper Roll Model in Teaching The Nature of Science
This is a hands-on activity in scientific method that uses inexpensive materials such as carton boxes, toilet paper roll tube, strings and toothpicks. It engages the students to conduct pattern
observation, prediction, testing and ends... | {"url":"http://serc.carleton.edu/integrate/workshops/methods2012/activities/aquino.html","timestamp":"2014-04-20T16:22:54Z","content_type":null,"content_length":"29180","record_id":"<urn:uuid:50f1ce20-c3e7-4b53-a1ae-f03d838baf63>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00488-ip... |
Tenafly Algebra 1 Tutor
Find a Tenafly Algebra 1 Tutor
Using my Mechanical Engineering degree as a start, I got into design of computer circuits and electronic calculating systems. I learned programming and, after some work on the early GPS's and
missile navigation, I started a software engineering consulting compa... | {"url":"http://www.purplemath.com/Tenafly_algebra_1_tutors.php","timestamp":"2014-04-16T16:29:14Z","content_type":null,"content_length":"23802","record_id":"<urn:uuid:af821697-e139-4bb4-af25-5b5171c1ff35>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN-20140416005204-00116-ip-10-147-4-33.ec2.internal... |
[Numpy-discussion] Numpy-discussion Digest, Vol 33, Issue 59
David Goldsmith d_l_goldsmith@yahoo....
Wed Jun 10 12:55:58 CDT 2009
--- On Wed, 6/10/09, Juanjo Gomez Navarro <juanjo.gomeznavarro@gmail.com> wrote:
> The speed at which some points tend to infinite is huge.
> Some points, after 10 steps, reach a NaN. This i... | {"url":"http://mail.scipy.org/pipermail/numpy-discussion/2009-June/043360.html","timestamp":"2014-04-18T00:53:33Z","content_type":null,"content_length":"6510","record_id":"<urn:uuid:bdc32db1-d094-4486-bc5e-bb1af6a9991a>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00084-ip-10-147-4-3... |
Solve for variable using d=rt ?
February 2nd 2009, 01:39 PM #1
Jan 2009
Solve for variable using d=rt ?
1) You drove from your home to Dallas at an average speed of 60mph, and returned hom at an average speed of 45 mph. If the total driving time was 21 hours, how far is it from your home to Dallas?
2) If 5r... | {"url":"http://mathhelpforum.com/algebra/71405-solve-variable-using-d-rt.html","timestamp":"2014-04-17T17:05:32Z","content_type":null,"content_length":"31742","record_id":"<urn:uuid:c87300db-d7e6-41de-835c-d0177698f6a7>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00468-ip-10-147-4-3... |
Intuitive content of Loop Gravity--Rovelli's program
http://arxiv.org/abs/1212.5166 Modeling black holes with angular momentum in loop quantum gravity
Ernesto Frodden, Alejandro Perez, Daniele Pranzetti, Christian Roeken
(Submitted on 20 Dec 2012)
We construct a SU(2) connection formulation of Kerr isolated horizons. A... | {"url":"http://www.physicsforums.com/showthread.php?p=4184595","timestamp":"2014-04-20T03:17:51Z","content_type":null,"content_length":"117713","record_id":"<urn:uuid:5d804da2-45fb-4ebf-8ec8-8ff5fe23bbe9>","cc-path":"CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-20140416005217-00024-ip-10-147-4-33.ec2.internal... |
Mapping from a finite index subgroup onto the whole group
up vote 19 down vote favorite
Dear All,
here is the question:
Does there exist a finitely generated group $G$ with a proper subgroup $H$ of finite index, and an (onto) homomorphism $\phi:G\to G$ such that $\phi(H)=G$?
My guess is "no", for the following reason (... | {"url":"http://mathoverflow.net/questions/90021/mapping-from-a-finite-index-subgroup-onto-the-whole-group/90036","timestamp":"2014-04-21T15:21:42Z","content_type":null,"content_length":"72022","record_id":"<urn:uuid:556f865a-636c-45f2-83d6-78400447782e>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN... |
Posts from June 2010 on Not About Apples
Getting a Complete Collection
10 June 2010
This summer, I’m teaching 400-level intro probability from Ross, 8th edition. Recently we covered a problem from that book which has a special place in my heart. This is a problem which I made up
for myself, and then actually solved, ... | {"url":"http://notaboutapples.wordpress.com/2010/06/","timestamp":"2014-04-17T18:25:14Z","content_type":null,"content_length":"29909","record_id":"<urn:uuid:4a9aa4aa-a0bc-49fc-beb5-f3a95ad3a167>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00236-ip-10-147-4-33.ec2.internal.warc.gz"} |
Southeastern Math Tutor
Find a Southeastern Math Tutor
...This the primary technique of how I get my students to realize the cool things about chemistry and how to remember them. I apply this same technique to history and government. Everything has a
reason as to why it happened or existed.
14 Subjects: including... | {"url":"http://www.purplemath.com/Southeastern_Math_tutors.php","timestamp":"2014-04-21T15:03:21Z","content_type":null,"content_length":"23874","record_id":"<urn:uuid:ee52d4e1-607b-4ef6-8e21-6bb78e245d19>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00582-ip-10-147-4-33.ec2.internal... |
Winchester, MA Algebra 2 Tutor
Find a Winchester, MA Algebra 2 Tutor
...The same concepts are in elementary algebra, and I have a good amount of experience tutoring at this level. I like to find the right balance between identifying patterns through the repetition
of a given category of problem, and asking more con... | {"url":"http://www.purplemath.com/Winchester_MA_algebra_2_tutors.php","timestamp":"2014-04-19T12:34:20Z","content_type":null,"content_length":"24414","record_id":"<urn:uuid:b3cd5344-e259-4abc-86d7-385d0d29020b>","cc-path":"CC-MAIN-2014-15/segments/1397609537186.46/warc/CC-MAIN-20140416005217-00105-ip-10-147-4-33.ec2.in... |
Pi's Last Digit
Date: 7/20/96 at 9:8:23
From: Anonymous
Subject: Pi's Last Digit
I was browsing though the elementary questions and I found the section
on pi. I know pi is a nonterminating decimal, but if there is a last
digit (this is a paradox..but who cares...) wouldn't the last digit be
a 0? Take a decimal, such as... | {"url":"http://mathforum.org/library/drmath/view/57091.html","timestamp":"2014-04-16T08:14:31Z","content_type":null,"content_length":"8996","record_id":"<urn:uuid:95973343-3e12-40a0-a105-bdc3d0ef3837>","cc-path":"CC-MAIN-2014-15/segments/1397609537804.4/warc/CC-MAIN-20140416005217-00329-ip-10-147-4-33.ec2.internal.warc... |
Re: Why is using single-precision slower than using double-precision
weaver@weitek.COM (Michael Gordon Weaver)
Wed, 23 Nov 1994 19:18:03 GMT
From comp.compi... | {"url":"http://compilers.iecc.com/comparch/article/94-11-147","timestamp":"2014-04-16T10:32:07Z","content_type":null,"content_length":"6332","record_id":"<urn:uuid:597d25ed-e144-4a17-991a-ed398742b9e2>","cc-path":"CC-MAIN-2014-15/segments/1397609523265.25/warc/CC-MAIN-20140416005203-00619-ip-10-147-4-33.ec2.internal.wa... |
gluLookAt(3) gluLookAt(3)
gluLookAt - define a viewing transformation
void gluLookAt( GLdouble eyeX,
GLdouble eyeY,
GLdouble eyeZ,
GLdouble centerX,
GLdouble cente... | {"url":"http://www.manpagez.com/man/3/gluLookAt/","timestamp":"2014-04-17T10:24:18Z","content_type":null,"content_length":"8133","record_id":"<urn:uuid:71ec725f-a9d5-4c5f-b83a-893bedd029c2>","cc-path":"CC-MAIN-2014-15/segments/1397609527423.39/warc/CC-MAIN-20140416005207-00089-ip-10-147-4-33.ec2.internal.warc.gz"} |
[FOM] Kreisel, Löb, and G2
Aatu Koskensilta Aatu.Koskensilta at uta.fi
Mon Apr 2 08:41:39 EDT 2012
Quoting John Kadvany <jkadvany at sbcglobal.net>:
> In George Boolos, The Unprovability of Consistency (p.11), Boolos cites p.155
> of Kreisel's 'Mathematical Logic', published in T. L. Saaty, ed. Lectures on
> Modern Mat... | {"url":"http://www.cs.nyu.edu/pipermail/fom/2012-April/016396.html","timestamp":"2014-04-18T08:04:06Z","content_type":null,"content_length":"5027","record_id":"<urn:uuid:07d3f08d-8e74-44b0-9c05-bcc7aac28cb6>","cc-path":"CC-MAIN-2014-15/segments/1397609533121.28/warc/CC-MAIN-20140416005213-00137-ip-10-147-4-33.ec2.inter... |
Because it's Friday: Maths Jokes
Looking for some cocktail party conversation to use over the weekend? Try some of these maths jokes collected by Google engineer Dominic Mazzoni. Some of my faves:
Q. How many mathematicians does it take to change a lightbulb?
A. 1, he gives the lightbulb to 3 engineers, thus re... | {"url":"http://www.inside-r.org/blogs/2012/03/02/because-its-friday-maths-jokes","timestamp":"2014-04-20T15:13:00Z","content_type":null,"content_length":"14135","record_id":"<urn:uuid:b5fc5c41-9362-4f22-9b16-ff458aa5fa31>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00171-ip-10-147-... |
Hyperbolic Thinking
Copyright © University of Cambridge. All rights reserved.
'Hyperbolic Thinking' printed from http://nrich.maths.org/
This problem naturally follows on from Trig Reps, although the two problems may be attempted independently.
Steve left the following cryptic page in his notebook:
It seems that Stev... | {"url":"http://nrich.maths.org/8106/index?nomenu=1","timestamp":"2014-04-16T22:29:19Z","content_type":null,"content_length":"4174","record_id":"<urn:uuid:9c826fae-77e2-4887-940c-e300993117d3>","cc-path":"CC-MAIN-2014-15/segments/1398223206147.1/warc/CC-MAIN-20140423032006-00310-ip-10-147-4-33.ec2.internal.warc.gz"} |
Posts by
Total # Posts: 1,315
You stick a paper onto a fridge with a magnet. There are two free body diagrams, one for the paper and one for the magnet. What are the forces acting on each object, which way do they point?
She is a 13 (almost 14) year old girl..
Say there was a girl who is about 195 lbs. and about 5'7".... | {"url":"http://www.jiskha.com/members/profile/posts.cgi?name=Samantha&page=2","timestamp":"2014-04-19T04:46:22Z","content_type":null,"content_length":"31695","record_id":"<urn:uuid:ff6d860a-c0f7-45d2-b730-c61bf1a8e29b>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140416005215-00220-ip-10-147-4-3... |
Complex structures on a K3 surface as a hyperkähler manifold
up vote 5 down vote favorite
A hyperkähler manifold is a Riemannian manifold of real dimension $4k$ and holonomy group contained in $Sp(k)$. It is known that every hyperkähler manifold has a $2$-sphere $S^{2}$ of complex
structures with respect to which the m... | {"url":"http://mathoverflow.net/questions/106143/complex-structures-on-a-k3-surface-as-a-hyperkahler-manifold","timestamp":"2014-04-19T04:26:35Z","content_type":null,"content_length":"53626","record_id":"<urn:uuid:90181349-cc29-4c51-870d-35e8af0be4ba>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-2... |
examples of proofs in geometry with answers
Best Results From Wikipedia Yahoo Answers Encyclopedia Youtube
From Wikipedia
Cone (geometry)
A cone is a three-dimensionalgeometric shape that tapers smoothly from a flat, usually circular base to a point called the apex or vertex. More precisely, it is the solid figure boun... | {"url":"http://www.edurite.com/kbase/examples-of-proofs-in-geometry-with-answers","timestamp":"2014-04-16T22:14:49Z","content_type":null,"content_length":"89674","record_id":"<urn:uuid:5954b000-e00c-4fd9-9b9e-9fed0c5bec1c>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-20140416005205-00412-ip-10-147-... |
Kids.Net.Au - Encyclopedia > Icosahedron
is one of the five
Platonic solids
. It is a convex regular
composed of twenty triangular faces, with five meeting at each vertex. Its
is the
Canonical coordinates for the vertices of an icosahedron centered at the origin are (0,±1,±τ), (±1,±τ,0), (±τ,0,±1), where τ = (1+√5)/2 i... | {"url":"http://encyclopedia.kids.net.au/page/ic/Icosahedron","timestamp":"2014-04-21T04:38:23Z","content_type":null,"content_length":"14124","record_id":"<urn:uuid:fffc525d-ec4a-464d-88ac-ec2a593bec85>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00170-ip-10-147-4-33.ec2.internal.wa... |
Re: bug
Karim BELABAS on Tue, 4 Jan 2000 17:12:22 +0100 (MET)
[Date Prev] [Date Next] [Thread Prev] [Thread Next] [Date Index] [Thread Index]
[James G. McLaughlin:]
> I was trying to convert a magma program to gp and got a "segmentation
> fault, bug in gp " message when I tried to run it. Any ideas on how to fix
> it g... | {"url":"http://pari.math.u-bordeaux.fr/archives/pari-dev-0001/msg00003.html","timestamp":"2014-04-21T04:42:32Z","content_type":null,"content_length":"6164","record_id":"<urn:uuid:b7f46428-4426-448e-83df-c6f4d63c8182>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00540-ip-10-147-4-33.... |
A quantum jump in computer science
- Physica D , 1998
"... Teleportation as a ..."
"... Recent results in quantum physics indicate that Quantum Bit Commitment is impossible in a scenario where the participants have the full power of quantum mechanics to attack the protocol. This
implies that all existing protocols for ... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=2804259","timestamp":"2014-04-23T19:02:21Z","content_type":null,"content_length":"22051","record_id":"<urn:uuid:037983b4-ae08-46b3-b912-aa8e9089a193>","cc-path":"CC-MAIN-2014-15/segments/1398223203235.2/warc/CC-MAIN-20140423032003-00469-ip-10-147-4-33.ec2.internal.war... |
Math Help
April 10th 2008, 08:38 PM #1
I'm supposed to find the maximum slope of the curve $y = 8x^3 + 2x^2$
My work:
$y' = 24x^2 + 4x$
$y'' = 48x + 4$
$24x^2 + 4x = 0$
$4x(6x + 1) = 0$
$6x + 1 = 0$
$x = \frac{-1}{6}$
My question is, am I supposed to solve for x in $y^{''}$ as well ... | {"url":"http://mathhelpforum.com/calculus/34042-derivatives.html","timestamp":"2014-04-21T13:42:36Z","content_type":null,"content_length":"52674","record_id":"<urn:uuid:93bee99d-27e2-4058-96ba-e310128c4ca7>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-00221-ip-10-147-4-33.ec2.intern... |
Examples of solving linear ordinary differential equations using an integrating factor
Example 1
Solve the ODE \begin{gather} \diff{x}{t} -\cos(t)x(t)=\cos(t) \label{example1} \end{gather} for the initial conditions $x(0)=0$.
Solution: Since this is a first order linear ODE, we can solve it by finding an integrating fa... | {"url":"http://mathinsight.org/ordinary_differential_equation_linear_integrating_factor_examples","timestamp":"2014-04-21T02:26:44Z","content_type":null,"content_length":"19607","record_id":"<urn:uuid:4534c931-270b-471e-bcf6-814ad30786e4>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-... |
Passaic Math Tutor
Find a Passaic Math Tutor
...With 15 years of experience, I understand that everyone learns differently and I try to find the best way with each individual student to make that breakthrough. I have worked for several
tutoring companies over the years, in both private and classroom settings, and h... | {"url":"http://www.purplemath.com/Passaic_Math_tutors.php","timestamp":"2014-04-19T23:36:49Z","content_type":null,"content_length":"23686","record_id":"<urn:uuid:fea9b71d-fa8c-43bc-86c1-7ab5bba1ece3>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00113-ip-10-147-4-33.ec2.internal.warc... |
how far translate to deep [Archive] - OpenGL Discussion and Help Forums
11-25-2009, 04:55 PM
Hi, my question is simple but I can't find answer anywere.
I draw rectangle with rWidth that (0, 0) is in the center. How far translate it to deep along Z axis so as to left and right border of rect touch exactly screen border... | {"url":"http://www.opengl.org/discussion_boards/archive/index.php/t-169272.html","timestamp":"2014-04-21T00:15:06Z","content_type":null,"content_length":"4417","record_id":"<urn:uuid:c8086e6f-7879-424e-9eb8-a17f3ff7012a>","cc-path":"CC-MAIN-2014-15/segments/1397609539337.22/warc/CC-MAIN-20140416005219-00090-ip-10-147-4... |
: Pavement Drainage
Anchor: #i1014976
Section 4: Pavement Drainage
Anchor: #i1014981
Design Objectives
A chief objective in the design of a storm drain system is to move any accumulated water off the roadway as quickly and efficiently as possible. Where the flow is concentrated, the design objective
should be to minimi... | {"url":"http://onlinemanuals.txdot.gov/txdotmanuals/hyd/pavement_drainage.htm","timestamp":"2014-04-19T08:18:30Z","content_type":null,"content_length":"184656","record_id":"<urn:uuid:959ba0a7-f836-4423-bebb-5611029a9474>","cc-path":"CC-MAIN-2014-15/segments/1398223206770.7/warc/CC-MAIN-20140423032006-00191-ip-10-147-4-... |
Replacing function parameters by global variables, in: J.E. Stoy (Ed
Results 1 - 10 of 61
- ACM Transactions on Programming Languages and Systems , 1999
"... this article, we describe approximation methods for computing interprocedural aliases for a program written in a language that includes pointers, reference parame... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=309254","timestamp":"2014-04-17T16:09:44Z","content_type":null,"content_length":"36690","record_id":"<urn:uuid:b890c927-137a-4b49-8143-3a7401b66995>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00036-ip-10-147-4-33.ec2.internal.warc... |
Decidable fragments of first-order modal logics
Results 1 - 10 of 25
- ACM Transactions on Computational Logic , 2003
"... Until recently, First-Order Temporal Logic (FOTL) has been only partially understood. While it is well known that the full logic has no finite axiomatisation, a more detailed analysis of
fragments ... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=179040","timestamp":"2014-04-19T05:41:33Z","content_type":null,"content_length":"37716","record_id":"<urn:uuid:11c55170-9682-4f29-b822-795fce77da6c>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140416005215-00424-ip-10-147-4-33.ec2.internal.war... |
Hirzebruch Surfaces
up vote 4 down vote favorite
Good Morning,
I'm trying to prove that two different definitions of the Hirzebruch Surfaces coincide, and am having problems. Let $a \geq 0$. My first definition for the $a^{th}$ surface is
$X_a= \mathbb{P}(\mathcal{O}(a) \oplus \mathcal{O}) \longrightarrow \mathbb{P}^1_... | {"url":"http://mathoverflow.net/questions/70337/hirzebruch-surfaces","timestamp":"2014-04-19T17:58:32Z","content_type":null,"content_length":"54717","record_id":"<urn:uuid:66f333f6-aa26-4fe3-b84a-50163436a451>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00541-ip-10-147-4-33.ec2.int... |
Excel Formulas Step by Step Tutorial
Cell References in Formulas
While the formula in the previous step works, it has one drawback. If you want to change the data being calculated you need to edit or rewrite the formula.
A better way would be to write formulas so that you can change the data without having to change th... | {"url":"http://spreadsheets.about.com/od/excelformulas/ss/formula_begin_3.htm","timestamp":"2014-04-18T00:12:42Z","content_type":null,"content_length":"44435","record_id":"<urn:uuid:80c09637-7d7c-4c72-8d9f-b5264f8e2fc2>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00240-ip-10-147-4-3... |
This is a preprocessor which can (optionally) be invoked to collapse short branch lengths.
collapseBranches :: forall a. (a -> Bool) -> (a -> a -> a) -> NewickTree a -> NewickTree aSource
Removes branches that do not meet a predicate, leaving a shallower, bushier tree. This does NOT change the set of leaves (taxa), it ... | {"url":"http://hackage.haskell.org/package/phybin-0.3/docs/Bio-Phylogeny-PhyBin-PreProcessor.html","timestamp":"2014-04-17T16:43:13Z","content_type":null,"content_length":"7454","record_id":"<urn:uuid:4fa9f36b-3c1e-421e-9968-b8ae0aef9326>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-... |
RcppArmadillo 0.1.0
March 11, 2010
By dirk.eddelbuettel
Besides the new
, another new package RcppArmadillo got spun out of
with the
recent release 0.7.8 of Rcpp
Romain and I already had an example of a simple but fast linear model fit using the (very clever) Armadillo C++ library by Conrad Sanderson. In fact, I had us... | {"url":"http://www.r-bloggers.com/rcpparmadillo-0-1-0-2/","timestamp":"2014-04-21T07:23:24Z","content_type":null,"content_length":"41242","record_id":"<urn:uuid:f05393f1-d70a-4c5d-aa70-3fb531af6360>","cc-path":"CC-MAIN-2014-15/segments/1397609539665.16/warc/CC-MAIN-20140416005219-00316-ip-10-147-4-33.ec2.internal.warc.... |
Naturalness Explained With The Roulette
Five years ago I was fascinated by
an analogy used by my friend Michelangelo Mangano
to explain the problem of naturalness, a crucial issue in fundamental physics, and maybe the biggest single indicium we have that new physics beyond the standard model of particle physics should
... | {"url":"http://www.science20.com/quantum_diaries_survivor/naturalness_explained_roulette-94976","timestamp":"2014-04-18T19:27:24Z","content_type":null,"content_length":"65160","record_id":"<urn:uuid:3a5a6906-1c1a-478a-876d-06ceacba8826>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00... |