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Narberth Geometry Tutor
Find a Narberth Geometry Tutor
...I find that children with ADHD often struggle organizing information and often prefer to learn about something in a way that relates to them and their interests. For this reason, I like to use
the 4-Square Writing Program for struggling writers. It allows th... | {"url":"http://www.purplemath.com/narberth_geometry_tutors.php","timestamp":"2014-04-17T13:07:13Z","content_type":null,"content_length":"23975","record_id":"<urn:uuid:45df5fe3-5250-4102-9b02-e28a5a3bd3c9>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00601-ip-10-147-4-33.ec2.internal.... |
Homework Help
Posted by Sissy on Friday, May 18, 2007 at 10:13pm.
The sum of two numbers is 112. The second is 7 more than 4 times the first. What are the two numbers?
Am I doing something wrong? I seem to be stuck.
x + y =112
The second equation should be:
Should be the 2nd equation.
The 2nd one:
is 7 more. This is a ... | {"url":"http://www.jiskha.com/display.cgi?id=1179540793","timestamp":"2014-04-16T18:07:25Z","content_type":null,"content_length":"8812","record_id":"<urn:uuid:bf39954a-b5b4-44ae-9bf6-40098f647cc7>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN-20140416005204-00658-ip-10-147-4-33.ec2.internal.warc.gz... |
Equation of lines
March 19th 2013, 04:40 AM #1
Oct 2009
Equation of lines
How would I find the
parametric equations for the line through (2,4,6) that
is perpendicular to the plane x-y+3z=7
It is my understanding that to find the equation of a line i need a parallel vector and a point.
Im... | {"url":"http://mathhelpforum.com/calculus/215065-equation-lines.html","timestamp":"2014-04-18T13:17:26Z","content_type":null,"content_length":"34770","record_id":"<urn:uuid:ee1ddc77-2353-4ba5-adcf-64582a888805>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00143-ip-10-147-4-33.ec2.in... |
Local Extreme Values Question
November 1st 2008, 09:13 AM #1
Sep 2008
Local Extreme Values Question
Let y=f(x) be differentiable and suppose that the graph of f does not pass through the origin. The distance D from the origin to a point P(x,f(x)) of the graph is given by
$D=\sqrt{x^2 + [f(x)]^2}$
Show t... | {"url":"http://mathhelpforum.com/calculus/56896-local-extreme-values-question.html","timestamp":"2014-04-18T07:18:21Z","content_type":null,"content_length":"35367","record_id":"<urn:uuid:d7cd5aa9-330a-4ec9-b775-8cdb3a89366b>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-20140416005212-00500-ip-10-1... |
Creating Professional Tables Using Estpost
Original Code
* This command should install the package estout.
ssc install estout
estpost is one of several commands included in the pacakge estout.
In my previous post I delt with the primary use of estout, to create post estimation tables fit for publication.
I pretty much ... | {"url":"http://www.econometricsbysimulation.com/2012/11/creating-professional-tables-using.html","timestamp":"2014-04-17T12:30:08Z","content_type":null,"content_length":"206651","record_id":"<urn:uuid:9ee0ad0b-c685-4000-bcc6-7b470d5f19e3>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210... |
GPMD Publications 2007 - present
H.-G. Yu, Ab initio molecular dynamics simulation of photodetachment reaction of cyclopentoxide, Chem. Phys. Lett, 441, 20 (2007).
H.-G. Yu, J. T. Muckerman and J.S. Francisco, Quantum force molecular dynamics study ofthe O atoms with HOCO reaction, J. Chem. Phys. 127, 094302 (2007).
M.... | {"url":"http://www.bnl.gov/chemistry/gpmd/publications.asp","timestamp":"2014-04-16T05:58:53Z","content_type":null,"content_length":"29720","record_id":"<urn:uuid:7adae4de-8ebf-48df-bcaa-cbe1a4116c08>","cc-path":"CC-MAIN-2014-15/segments/1397609521512.15/warc/CC-MAIN-20140416005201-00228-ip-10-147-4-33.ec2.internal.war... |
Sequences, especially arithmetic and geometric ones, are good for word problems.
Sequence story problems come in two main flavors. If these flavors were ice cream, they'd be vanilla and rocky road. We may have to find
• the value of a particular term a[n]. This is the standard vanilla problem.
• the value of n at w... | {"url":"http://www.shmoop.com/sequences/word-problem.html","timestamp":"2014-04-21T14:54:32Z","content_type":null,"content_length":"27776","record_id":"<urn:uuid:8a343b84-781d-4efd-aff1-ee10c7aecad0>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00500-ip-10-147-4-33.ec2.internal.warc... |
The n-Category Café
Question about Tensor Categories
Posted by Urs Schreiber
Hendryk Pfeiffer asked me to forward the following question to the Café.
Dear $n$-category people,
I have a question about tensor categories on which I would appreciate comments and references. As probably several people are interested in this... | {"url":"http://golem.ph.utexas.edu/category/2007/08/question_about_tensor_categori.html","timestamp":"2014-04-18T18:12:48Z","content_type":null,"content_length":"36242","record_id":"<urn:uuid:812124fe-144f-46a2-94b7-e70c15d2a312>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00322-ip-... |
C245 Homework 3
Due 2/23/05
First Name:
Last Name:
SID #:
E-mail Address for confirmation:
1. Calculate the deflection of a rectangular cantilever under it's own weight. In class, we calculated an upper bound on the d... | {"url":"http://bsac.eecs.berkeley.edu/~pister/245/2005S/HW/HW3/hw3.html","timestamp":"2014-04-19T09:24:27Z","content_type":null,"content_length":"5267","record_id":"<urn:uuid:ff240489-99de-49fd-ade2-036075f1fa80>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20140416005217-00631-ip-10-147-4-33.ec2.... |
Applications of a splitting trick
, 2010
"... The performance of a dynamic dictionary is measured mainly by its update time, lookup time, and space consumption. In terms of update time and lookup time there are known constructions that
guarantee constant-time operations in the worst case with high probability, and in t... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=9999449","timestamp":"2014-04-25T02:07:30Z","content_type":null,"content_length":"24547","record_id":"<urn:uuid:6204d1e7-5cd6-4115-abf2-4e0a1c890931>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00546-ip-10-147-4-33.ec2.internal.wa... |
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If the parabola y + 5 = a(x + 2)2 has a y-intercept 4, find a.... | {"url":"http://openstudy.com/updates/50c15c98e4b016b55a9e2aaf","timestamp":"2014-04-19T07:20:50Z","content_type":null,"content_length":"44822","record_id":"<urn:uuid:7924ec82-878a-40dc-82d6-e4cedf2d8f9e>","cc-path":"CC-MAIN-2014-15/segments/1397609536300.49/warc/CC-MAIN-20140416005216-00378-ip-10-147-4-33.ec2.internal.... |
Alexis H.
I have a passion for Math. I have been teaching and tutoring part time for the last 25 years. While in college, I was on the Putnam Intercollegiate Math Competition team for 3 consecutive years, and
won several math competitions. I had a 4.0 GPA in math as an undergraduate (graduating with more than twice the... | {"url":"http://www.wyzant.com/Tutors/VA/Ashburn/7804265/?g=3JY","timestamp":"2014-04-19T09:41:53Z","content_type":null,"content_length":"99715","record_id":"<urn:uuid:db40a69f-73b2-4f0a-8189-38477aad84b2>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20140416005217-00593-ip-10-147-4-33.ec2.internal... |
Guessing Simulations
February 26, 2009
Efficiently simulating nondeterministic turing machines
Ron Book was a language theorist–who unfortunately died in 1997. [DEL:I used the image of his co-author Sheila Greibach since I could not find his–I plan a post later on her own important work. :DEL]
Ron worked in a part of t... | {"url":"http://rjlipton.wordpress.com/2009/02/26/guessing-simulations/","timestamp":"2014-04-18T18:19:30Z","content_type":null,"content_length":"79896","record_id":"<urn:uuid:56443bee-dbc9-4b8f-8903-9913bdf905ca>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00071-ip-10-147-4-33.ec2.i... |
Lower bounds on off-diagonal Ramsey numbers
January 30, 2011 by Qiaochu Yuan
The goal of this post is to prove the following elementary lower bound for off-diagonal Ramsey numbers $R(s, t)$ (where $s \ge 3$ is fixed and we are interested in the asymptotic behavior as $t$ gets
... | {"url":"http://qchu.wordpress.com/2011/01/30/lower-bounds-on-off-diagonal-ramsey-numbers/","timestamp":"2014-04-17T15:26:07Z","content_type":null,"content_length":"108297","record_id":"<urn:uuid:07598d80-4d6b-4d99-9196-d470dcf8922e>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00053-... |
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Determine how many slices you will cut your pizza into. You ne... | {"url":"http://openstudy.com/updates/4fa6f4f9e4b029e9dc36620c","timestamp":"2014-04-18T16:03:37Z","content_type":null,"content_length":"87880","record_id":"<urn:uuid:90abe0a2-70a0-4e02-a219-f6276c76d825>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-20140416005213-00300-ip-10-147-4-33.ec2.internal.... |
The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional
development for teachers wishing to embed rich mathematical tasks into everyday classroom practice. More information on many ... | {"url":"http://nrich.maths.org/public/leg.php?code=-100&cl=2&cldcmpid=8289","timestamp":"2014-04-16T07:51:35Z","content_type":null,"content_length":"60021","record_id":"<urn:uuid:653b6c9d-83c7-4966-867e-05f18efb933e>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00262-ip-10-147-4-33.e... |
Coordination System Change Matrix
December 17th 2011, 11:26 AM #1
Dec 2011
Coordination System Change Matrix
Let's say we have the default xyz coordination system and want to use the bisectors of the angles of the default coordination system as our new coordination system. What will the transformation
Matri... | {"url":"http://mathhelpforum.com/advanced-algebra/194407-coordination-system-change-matrix.html","timestamp":"2014-04-20T08:26:34Z","content_type":null,"content_length":"34241","record_id":"<urn:uuid:818972d1-936d-4574-9705-2456321a26b3>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-0... |
Linear Interpolation FP1 Formula
Re: Linear Interpolation FP1 Formula
Their solution identifies a pattern then uses the standard sum for n^2 to get to that formula. I tried a GF approach and it is too messy, I don't think it is a good approach for this part of the
Re: Linear Interpolation FP1 Formula
I can generate a g... | {"url":"http://www.mathisfunforum.com/viewtopic.php?pid=256943","timestamp":"2014-04-20T18:36:38Z","content_type":null,"content_length":"35889","record_id":"<urn:uuid:5d321a18-06ee-467d-a645-b77400629272>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00650-ip-10-147-4-33.ec2.internal.... |
[Python-ideas] Introducing where clauses
Nick Coghlan ncoghlan at gmail.com
Mon Jun 22 12:40:05 CEST 2009
Andrey Popp wrote:
> value f(y) calculates three times -- It is a problem if function f
> takes much time to compute its value or has side effects. If we would
> have where clause, we can rewrite expression above w... | {"url":"https://mail.python.org/pipermail/python-ideas/2009-June/005028.html","timestamp":"2014-04-16T20:48:50Z","content_type":null,"content_length":"4086","record_id":"<urn:uuid:0e878e2d-45a2-423e-a85c-3f3ddad06baa>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-00559-ip-10-147-4-33... |
About the Chessmetrics Rating System
About the Chessmetrics Rating System
There are already two widely-accepted rating systems in place: ... | {"url":"http://chessmetrics.com/cm/Documents/AboutSystem.htm","timestamp":"2014-04-18T15:39:47Z","content_type":null,"content_length":"47184","record_id":"<urn:uuid:2a934e79-45f4-44b4-b554-bebf2a5617fe>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-20140416005213-00203-ip-10-147-4-33.ec2.internal.w... |
Localization of a UFD is again a UFD
November 9th 2010, 04:46 AM
Localization of a UFD is again a UFD
Ilm been trying to do this problem for a while now.
Suppose our UFD is $R$ and we have the multiplicative set $W\subseteq R$.
The problem I'm having is that irreducible elements in one ring (either $R$ or $... | {"url":"http://mathhelpforum.com/advanced-algebra/162631-localization-ufd-again-ufd-print.html","timestamp":"2014-04-20T01:30:06Z","content_type":null,"content_length":"8734","record_id":"<urn:uuid:7659296e-67bb-4648-95d7-fddbac0030ba>","cc-path":"CC-MAIN-2014-15/segments/1397609537804.4/warc/CC-MAIN-20140416005217-002... |
Bonferroni inequalities
Bonferroni inequalities
Let $E(1)$, $E(2),\ldots,E(n)$ be events in a sample space. Define
$\displaystyle S_{1}:=\sum_{{i=1}}^{n}\Pr(E(i))$
$\displaystyle S_{2}:=\sum_{{i<j}}\Pr(E(i)\cap E(j)),$
and for $2<k\leq n$,
$S_{k}:=\sum\Pr(E(i_{1})\cap\cdots\cap E(i_{k}))$
where the summation is take... | {"url":"http://planetmath.org/BonferroniInequalities","timestamp":"2014-04-18T23:19:07Z","content_type":null,"content_length":"65058","record_id":"<urn:uuid:d40cde26-3773-4cab-b7ac-27e35a16b71c>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00455-ip-10-147-4-33.ec2.internal.warc.gz"} |
Concrete-Representational-Abstract Instructional Approach
What is it?
Concrete-Representational-Abstract-Approach or CRA for short “can enhance the mathematics performance of students with learning disabilities. It is a three-part instructional strategy, with each part
building on the previous instruction to promote st... | {"url":"http://cbennettrivier.wordpress.com/2012/03/29/concrete-representational-abstract-instructional-approach/","timestamp":"2014-04-19T12:49:11Z","content_type":null,"content_length":"355475","record_id":"<urn:uuid:5937c7e8-d388-4e84-a20d-47d35b711a0c>","cc-path":"CC-MAIN-2014-15/segments/1397609537186.46/warc/CC-M... |
Summary: A Counterexample to the Generalized LinialNisan Conjecture
Scott Aaronson #
In earlier work [1], we gave an oracle separating the relational versions of BQP and the
polynomial hierarchy, and showed that an oracle separating the decision versions would follow
from what we called the Generalized LinialNisan (G... | {"url":"http://www.osti.gov/eprints/topicpages/documents/record/722/3701216.html","timestamp":"2014-04-18T11:56:14Z","content_type":null,"content_length":"8742","record_id":"<urn:uuid:34bd0ae2-d039-4550-a69e-4d57fbb1b4ba>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00046-ip-10-147-... |
Summary: MaxCut in H-free graphs
Noga Alon
Michael Krivelevich
Benny Sudakov
Dedicated to B´ela Bollob´as on his 60th birthday
For a graph G, let f(G) denote the maximum number of edges in a cut of G. For an integer
m and for a fixed graph H, let f(m, H) denote the minimum possible cardinality of f(G),
as G ranges over... | {"url":"http://www.osti.gov/eprints/topicpages/documents/record/226/1705799.html","timestamp":"2014-04-21T10:07:33Z","content_type":null,"content_length":"7983","record_id":"<urn:uuid:6919a3f0-183f-4575-9269-77f1972c239a>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416005219-00069-ip-10-147-... |
Atherton Science Tutor
Find an Atherton Science Tutor
...I'm flexible in my teaching style, and will work with parents, schools and students to determine the format of tutoring most likely to bring them success. In all cases, however, I emphasise
risk taking, self-sufficency and critical thinking when approaching p... | {"url":"http://www.purplemath.com/atherton_science_tutors.php","timestamp":"2014-04-19T20:06:44Z","content_type":null,"content_length":"23736","record_id":"<urn:uuid:761cf88b-8de1-46d8-b320-f801e916646b>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00336-ip-10-147-4-33.ec2.internal.... |
Carroll K. Johnson and Michael N. Burnett
Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6197, USA [e-mail (ckj@ornl.gov), (mnb@ornl.gov)].
Our Crystallographic Orbifold Atlas illustrates space-group topology by showing asymmetric units of space groups wrapped up to form closed sp... | {"url":"http://web.ornl.gov/sci/ortep/topology/ckjiucr.html","timestamp":"2014-04-18T22:17:12Z","content_type":null,"content_length":"2741","record_id":"<urn:uuid:c02cba53-1c9f-4333-b5f5-d8a78368b7c9>","cc-path":"CC-MAIN-2014-15/segments/1398223205375.6/warc/CC-MAIN-20140423032005-00504-ip-10-147-4-33.ec2.internal.warc... |
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sock sorting problem?
• one year ago
• one year ago
Be... | {"url":"http://openstudy.com/updates/510d6ac3e4b09cf125bcaa77","timestamp":"2014-04-20T13:58:59Z","content_type":null,"content_length":"28498","record_id":"<urn:uuid:ebcbc9ef-6329-48da-91eb-7faceab3ddac>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00308-ip-10-147-4-33.ec2.internal.... |
What Is Measured in Mathematics Tests
Volume 31, Issue 4 (2002)
What Is Measured in Mathematics Tests? Construct Validity of Curriculum-Based Measurement in Writing
Robin Schul Thurber
pp. 498—513
Abstract. Mathematics assessment is often characterized in the literature as being composed of two broad components: Comput... | {"url":"http://www.nasponline.org/publications/spr/abstract.aspx?ID=1605","timestamp":"2014-04-19T12:59:55Z","content_type":null,"content_length":"24183","record_id":"<urn:uuid:5ec2d643-d8f7-415f-adc1-9e3cd3b0687d>","cc-path":"CC-MAIN-2014-15/segments/1397609537186.46/warc/CC-MAIN-20140416005217-00087-ip-10-147-4-33.ec... |
Jean-Pierre Serre
Born: 15 September 1926 in Bages, France
... | {"url":"http://turnbull.mcs.st-and.ac.uk/~history/Biographies/Serre.html","timestamp":"2014-04-17T15:26:13Z","content_type":null,"content_length":"16511","record_id":"<urn:uuid:8036eb9f-4a41-41af-8ae8-1e61bae511e5>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00435-ip-10-147-4-33.ec2... |
Graph drawing: unrooted undirected tree graphs with specified edge lengths.
up vote 1 down vote favorite
Has Joseph Felsenstein's equal daylight layout been analyzed by the graph drawing community? The following description is taken from his drawtree documentation:
"This iteratively improves an initial tree by succ... | {"url":"http://mathoverflow.net/questions/79315/graph-drawing-unrooted-undirected-tree-graphs-with-specified-edge-lengths","timestamp":"2014-04-20T11:21:22Z","content_type":null,"content_length":"62211","record_id":"<urn:uuid:a11b2eab-339b-4f2b-a0c7-d9b88a0f6900>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/war... |
Projective resolution of modules over rings which are regular in codimension n
up vote 5 down vote favorite
All rings are Noetherian and commutative, modules are finitely generated.
It is a theorem of Serre that over a regular ring $R$, every module has a finite projective resolution.
More generally, if $R$ is regular ... | {"url":"http://mathoverflow.net/questions/53583/projective-resolution-of-modules-over-rings-which-are-regular-in-codimension-n?sort=newest","timestamp":"2014-04-21T13:11:20Z","content_type":null,"content_length":"61827","record_id":"<urn:uuid:ba361702-cc6b-424c-a8b7-e0c04f77dc5d>","cc-path":"CC-MAIN-2014-15/segments/13... |
The nonsense maths effect
Stephen Hawking was once told by an editor that every equation in a book would halve the sales. Curiously, the opposite seems to happen when it comes to research papers. Include a bit of maths in the
abstract (a kind of summary) and people rate your paper higher — even if the maths makes no se... | {"url":"http://plus.maths.org/content/nonsense-maths-effect","timestamp":"2014-04-18T16:03:44Z","content_type":null,"content_length":"29148","record_id":"<urn:uuid:a8a6792c-abf9-4a23-86d5-66984c2b47f2>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-20140416005213-00160-ip-10-147-4-33.ec2.internal.wa... |
Calculus Tutors
Chandler, AZ 85224
Mathematics and Science Tutor
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East Palo Alto, CA Algebra 1 Tutor
Find an East Palo Alto, CA Algebra 1 Tutor
...All of the students that I have worked with have increased their scores. I have worked with students specifically in Elementary Math for 3 years. I use the coaching and teaching skills that I
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Borrego Springs ACT Tutors
...But that is also what makes it such a great subject to teach. My favorite part of tutoring students in math and specifically in algebra is seeing that little light in their eyes that announces:
"I get it now!" Algebra 2 can be increasingly and sometimes frustratingly more difficult tha... | {"url":"http://www.algebrahelp.com/Borrego_Springs_act_tutors.jsp","timestamp":"2014-04-19T20:44:09Z","content_type":null,"content_length":"24647","record_id":"<urn:uuid:b6fe33a7-1267-42ce-8d25-bcc5e68dbb6b>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00094-ip-10-147-4-33.ec2.inter... |
Elliptical Orbits
Elliptical Orbits and Kepler's Three Laws of Planetary Motion
Since the orbits of the planets are ellipses, let us review a few basic properties of ellipses.
1. For an ellipse there are two points called foci (singular: focus) such that the sum of the distances to the foci from any point on the ellips... | {"url":"http://www.astro-tom.com/technical_data/elliptical_orbits.htm","timestamp":"2014-04-20T10:47:17Z","content_type":null,"content_length":"12274","record_id":"<urn:uuid:4d16f16f-a518-4128-9326-a18e6c2025b8>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140423032006-00475-ip-10-147-4-33.ec2.i... |
One simple multiple choice question
April 26th 2013, 07:36 PM #1
Apr 2013
Hi, I have one multiple choice question.
When you are designing a research study and considering what hypothesis test you might use, a common rule of thumb is to select the most powerful test. Why is this a good idea?
a. The most ... | {"url":"http://mathhelpforum.com/statistics/218260-one-simple-multiple-choice-question.html","timestamp":"2014-04-18T17:31:09Z","content_type":null,"content_length":"51662","record_id":"<urn:uuid:1d473646-109c-41b3-aacf-1dfeb824344f>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-20140416005213-0010... |
Winthrop Harbor Algebra 2 Tutor
Find a Winthrop Harbor Algebra 2 Tutor
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August 13th 2009, 01:58 PM #1
Apr 2009
Jan had the same summer job for three years 1993 through 1996, earning $250 in 1993, $325 in 1994, $400 in 1995 ,and $475 in 1996.
a. what is the slope of this line? what does it represent?
It is 75 and it represents the yearly increase.
b. What points on this ... | {"url":"http://mathhelpforum.com/algebra/97965-inequality.html","timestamp":"2014-04-19T22:35:22Z","content_type":null,"content_length":"44429","record_id":"<urn:uuid:a4f91151-8dd2-435f-832c-144cd490b2ab>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00427-ip-10-147-4-33.ec2.internal... |
Valley Stream Statistics Tutor
Find a Valley Stream Statistics Tutor
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saa congruency postulate
Definition of SAA Congruency Postulate
● If two angles and the included side of one triangle are congruent to the two angles and the included side of another triangle, then the two triangles are congruent.
More about SAA Congruency Postulate
● SAA postulate can also be called as AAS postula... | {"url":"http://www.icoachmath.com/math_dictionary/SAA_Congruency_Postulate.html","timestamp":"2014-04-18T08:18:47Z","content_type":null,"content_length":"8557","record_id":"<urn:uuid:940a18c0-6ac8-4390-8b1c-a4e8140b4136>","cc-path":"CC-MAIN-2014-15/segments/1397609533121.28/warc/CC-MAIN-20140416005213-00245-ip-10-147-4... |
The Unlikeliest Final Four
Posted by Neil Paine on March 28, 2011
Just how unlikely is this year’s Final Four of Kentucky, UConn, Virginia Commonwealth, and Butler?
Well, going by one measure, the odds of it happening were 0.00003% — only two entries (out 5.9 million) correctly picked the four teams in ESPN.com’s Brack... | {"url":"http://www.sports-reference.com/cbb/blog/?p=228","timestamp":"2014-04-17T21:35:41Z","content_type":null,"content_length":"30452","record_id":"<urn:uuid:08931c3a-7fb2-47b6-81df-ea72d2ffea7e>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-00158-ip-10-147-4-33.ec2.internal.warc.g... |
Numbers (NVGR)
This is a blog about math. If that scares you, go ahead and return to reading about video games. You won't hurt my feelings.
What's your favorite number? You might call it a lucky number; your go-to number when someone asks you for a numerical input. Do you genuinely feel that this number is better than ... | {"url":"http://www.destructoid.com/blogs/Zyrshnikashnu/numbers-nvgr--177185.phtml","timestamp":"2014-04-19T00:20:42Z","content_type":null,"content_length":"94540","record_id":"<urn:uuid:c4da3a6f-038b-42a0-8eb8-06b7580efcb1>","cc-path":"CC-MAIN-2014-15/segments/1397609535535.6/warc/CC-MAIN-20140416005215-00560-ip-10-147... |
Mathematical Systems & Solutions Salar
Mathematical Systems & Solutions Salary
Mathematical Systems & Solutions average salary is $78,541, median salary is $79,997 with a salary range from $69,222 to $84,947.
Mathematical Systems & Solutions salaries are collected from government agencies and companies. Each salary is ... | {"url":"http://www.salarylist.com/company/Mathematical-Systems-Solutions-Salary.htm","timestamp":"2014-04-18T11:39:26Z","content_type":null,"content_length":"30216","record_id":"<urn:uuid:e8f88b10-ef2b-4069-b4ea-efa55c238ba7>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00024-ip-10-... |
Newton's Law of Cooling
1. The aim of the experiment is to verify Newton's Law of Cooling of different materials and different liquids.
2. To draw the cooling curve.
Temperature difference in any situation results from energy flow into a system or energy flow from a system to surroundings. The former leads to heati... | {"url":"http://amrita.vlab.co.in/?sub=1&brch=194&sim=354&cnt=1","timestamp":"2014-04-21T12:08:02Z","content_type":null,"content_length":"18199","record_id":"<urn:uuid:5367490e-86f6-415f-adf4-f4a47ecb1be8>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-00384-ip-10-147-4-33.ec2.internal... |
To find the differential dy, solved alread, need to chek with your expertize :)
March 9th 2013, 11:44 AM #1
To find the differential dy
I have the function y = tan(3x + 6); need to find dy when x=3 and dx=0.03
By the formula dy = f'(x)*dx ;
f'(x)= sec^2(3x+6)(4)dx = (1/cos^2(3x+6))(4)dx, (need to calculate ... | {"url":"http://mathhelpforum.com/calculus/214498-find-differential-dy-solved-alread-need-chek-your-expertize.html","timestamp":"2014-04-16T08:34:27Z","content_type":null,"content_length":"36520","record_id":"<urn:uuid:e719a7d1-280e-4fdc-aa3f-5be200b8567f>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MA... |
If points A, B, and C lie on a circle of radius 1, what is
Author Message
If points A, B, and C lie on a circle of radius 1, what is [#permalink] 19 Mar 2011, 12:20
... | {"url":"http://gmatclub.com/forum/if-points-a-b-and-c-lie-on-a-circle-of-radius-1-what-is-111134.html","timestamp":"2014-04-23T14:30:35Z","content_type":null,"content_length":"187031","record_id":"<urn:uuid:01b36b14-cf00-4e4c-839f-d99a14485af7>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-201404230... |
Percentiles and Box Plots
We saw that the median splits the data so that half lies below the median. Often we are interested in the percent of the data that lies below an observed value.
We call the r^th percentile the value such that r percent of the data fall at or below that value.
If you score in the 75^th percenti... | {"url":"http://ltcconline.net/greenl/courses/201/descstat/percentileBox.htm","timestamp":"2014-04-17T03:49:04Z","content_type":null,"content_length":"6387","record_id":"<urn:uuid:80346692-340d-4a14-8062-fd611f0b3b76>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00436-ip-10-147-4-33.... |
Syllabus Intermediate Biometry
PLNTSOIL 661
Fal... | {"url":"http://people.umass.edu/~autio/Biometry.htm","timestamp":"2014-04-18T05:50:47Z","content_type":null,"content_length":"9950","record_id":"<urn:uuid:36b235bb-6678-4217-b84a-7c4079bb1a75>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-20140416005212-00481-ip-10-147-4-33.ec2.internal.warc.gz"} |
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OS App Development Thread is Relocated
• one year ago
• on... | {"url":"http://openstudy.com/updates/50ff20c7e4b0426c63681ac8","timestamp":"2014-04-17T04:11:59Z","content_type":null,"content_length":"104028","record_id":"<urn:uuid:677ed5de-e3c3-4a7a-a871-4a53bba0a0a6>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00444-ip-10-147-4-33.ec2.internal... |
Working Group: Biological Problems Using Binary Matrices
(L to R): Daniel B. Stouffer, Robert Dorazio, Richard Barker, Diego Vazquez, Steven Schwager, Stefano Allesina, Nicholas Gotelli, Joshua Ladau, Steven Kembel; (Not Pictured): Jennifer Dunne, Dan
Simberloff, Edward Connor.
Topic: Working Group on Biological Proble... | {"url":"http://www.nimbios.org/workinggroups/WG_binary_matrices.html","timestamp":"2014-04-16T07:12:41Z","content_type":null,"content_length":"24683","record_id":"<urn:uuid:b5fa6272-822a-41dc-b21c-0a8698995fdf>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00210-ip-10-147-4-33.ec2.int... |
quadrature,in mathematics, the process of determining the area of a plane geometric figure by dividing it into a collection of shapes of known area (usually rectangles) and then finding the limit (as
the divisions become ever finer) of the sum of these areas. When this process is performed with solid figures to find vo... | {"url":"http://media-3.web.britannica.com/eb-diffs/902/485902-8909-62136.html","timestamp":"2014-04-21T04:45:11Z","content_type":null,"content_length":"1449","record_id":"<urn:uuid:3eada3bb-5a68-4070-aa58-e737fb5fbba5>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00450-ip-10-147-4-3... |
st: RE: saving output of -correlate, c- in two submatrixes for later us
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st: RE: saving output of -correlate, c- in two submatrixes for later use
From "Nick Cox" <n.j.cox@durham.ac.uk>
To <statalist@hsphsun2.harvard.edu>
Subject st: RE: ... | {"url":"http://www.stata.com/statalist/archive/2007-11/msg00130.html","timestamp":"2014-04-19T19:49:11Z","content_type":null,"content_length":"8212","record_id":"<urn:uuid:39213df0-3233-4764-ad80-41d186475614>","cc-path":"CC-MAIN-2014-15/segments/1398223206118.10/warc/CC-MAIN-20140423032006-00117-ip-10-147-4-33.ec2.int... |
Heap queue algorithm
This module provides an implementation of the heap queue algorithm, also known as the priority queue algorithm.
Heaps are arrays for which heap[k] <= heap[2*k+1] and heap[k] <= heap[2*k+2] for all k, counting elements from zero. For the sake of comparison, non-existing elements are considered to be... | {"url":"http://wingware.com/psupport/python-manual/2.3/lib/module-heapq.html","timestamp":"2014-04-18T15:41:10Z","content_type":null,"content_length":"9058","record_id":"<urn:uuid:82b57c03-9e66-4e2d-a95a-46358191b4d8>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-20140416005213-00646-ip-10-147-4-33... |
non-zero, divergence-free vector fields on 2-torus
up vote 2 down vote favorite
Suppose $X$ is a nowhere vanishing vector field on the 2-torus that preserves the standard area element $\mu=d\theta\wedge d\zeta$. By area preservation, $$ i_X\mu=dh+ad\theta+bd\zeta, $$ for some
smooth function $h$ and constants $a,b\in\m... | {"url":"http://mathoverflow.net/questions/111494/non-zero-divergence-free-vector-fields-on-2-torus","timestamp":"2014-04-25T08:16:15Z","content_type":null,"content_length":"55870","record_id":"<urn:uuid:91aa3e60-fe0a-47c1-a7f2-0617488a7e73>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-201404230320... |
January 2nd 2006, 06:12 PM #1
Global Moderator
Nov 2005
New York City
Something tells me I made a similar post before but I did not find it.
What is the rigorous mathematical definition of randomness? I was thinking like this: Assume you have an algorithm which produces numbers then we can define it as ... | {"url":"http://mathhelpforum.com/advanced-statistics/1537-randomness.html","timestamp":"2014-04-17T23:33:45Z","content_type":null,"content_length":"48762","record_id":"<urn:uuid:22fe6645-760a-4ee2-b4d1-ad0a93cfe3d8>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-00592-ip-10-147-4-33.e... |
Shell Theory and Masonry Domes
Shell Theory is a field of physics, mathematics, architecture, topography and engineering which provides insight into masonry dome structures. Today I’ll be looking at Shell Theory in the context of
many topics which I’ve already written about on this blog, and tying several things togeth... | {"url":"http://masonrydesign.blogspot.com/2012/01/shell-theory-and-masonry-domes.html","timestamp":"2014-04-19T04:36:31Z","content_type":null,"content_length":"124212","record_id":"<urn:uuid:9c72e510-b7c6-408e-9299-54a683e2a458>","cc-path":"CC-MAIN-2014-15/segments/1398223206770.7/warc/CC-MAIN-20140423032006-00368-ip-1... |
jordan decomposition and generalized eigenvectors
Jeremy Watts
science forum Guru Wannabe
Joined: 24 Mar 2005
Posts: 239
Posted: Tue Jul 18, 2006 6:49 pm Post subject:
ok, firstly excuse the length of this post and the fact that it is cross
posted.... (i really didnt know the most appropr... | {"url":"http://sci4um.com/post-323981---Tue-Jul-18--2006-6-49-pm.html","timestamp":"2014-04-20T13:34:41Z","content_type":null,"content_length":"27632","record_id":"<urn:uuid:bcc4c3f6-f0bb-4ed8-b7fd-6a557e3bea22>","cc-path":"CC-MAIN-2014-15/segments/1398223206147.1/warc/CC-MAIN-20140423032006-00614-ip-10-147-4-33.ec2.in... |
Chain conditions in quotients of power sets
up vote 5 down vote favorite
Several days ago a friend asked me the following:
We know that in $\mathcal P(\mathbb N)$ we can find a family of size continuum that every [distinct] two intersect in a finite set. Can we do that with $\mathcal P(\mathbb R)$, that is a family... | {"url":"http://mathoverflow.net/questions/99119/chain-conditions-in-quotients-of-power-sets/99133","timestamp":"2014-04-18T14:12:12Z","content_type":null,"content_length":"63226","record_id":"<urn:uuid:86c89534-d241-4578-b775-768df1538cca>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/CC-MAIN-2014041600521... |
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Can someone please help me understand how to solve the followi... | {"url":"http://openstudy.com/updates/50a2ee57e4b079bc14512327","timestamp":"2014-04-16T16:51:01Z","content_type":null,"content_length":"27795","record_id":"<urn:uuid:809d2be8-b83f-4f87-aa83-21c005e6834b>","cc-path":"CC-MAIN-2014-15/segments/1398223210034.18/warc/CC-MAIN-20140423032010-00070-ip-10-147-4-33.ec2.internal.... |
The book, Top-down Calculus, contains five chapters. The first four chapters constitute the core calculus course. Chapter five develops infinite series with an emphasis on intuition. The first four
chapters are presented below. Each chapter (a pdf file) has its own Table of Contents and Index. In addition, separate pdf... | {"url":"http://cseweb.ucsd.edu/~gill/TopDownCalcSite/","timestamp":"2014-04-19T04:20:55Z","content_type":null,"content_length":"17959","record_id":"<urn:uuid:2b493d61-96ff-4e19-b7fc-1c02b96d334c>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140416005215-00413-ip-10-147-4-33.ec2.internal.warc.gz"... |
Garrett Park Geometry Tutor
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Chapter 22. Fast Prefiltered Lines
GPU Gems 2
GPU Gems 2
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purchase a beautifully printed version of this book
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Constant and nonconstant growth valuation
September 20th 2009, 03:41 PM #1
Sep 2009
Constant and nonconstant growth valuation
Can someone please help me, i am stumped on these 2 problems? Thanks.
1-A company currently pays dividnd of $2 per share. It is estimated that the conpnay's divivend will grow at a r... | {"url":"http://mathhelpforum.com/business-math/103352-constant-nonconstant-growth-valuation.html","timestamp":"2014-04-18T04:08:48Z","content_type":null,"content_length":"33987","record_id":"<urn:uuid:12a43d26-e74f-4e2c-8417-ad6206388d83>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212... |
Post a reply
I assume they mean that only whole numbers are allowed (they should have said so!).
You can solve these by writing a factor table, like this:
These are all the factors of 36. This means, "Multiply the top number by the bottom number, and you'll get 36." Since you find the area of a rectangle by multiplying... | {"url":"http://www.mathisfunforum.com/post.php?tid=1589","timestamp":"2014-04-20T16:42:15Z","content_type":null,"content_length":"16611","record_id":"<urn:uuid:33dc376d-94a6-43f2-8072-5c618bb052de>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/CC-MAIN-20140416005218-00632-ip-10-147-4-33.ec2.internal.warc.g... |
Orbits in commutative groups.
up vote 6 down vote favorite
Let A be finite commutative group say $(Z_m)^h$. I will say that $S \subset A$ is an orbit if exist group $H$ which acts on A such that $S$ is an orbit of $H$.
Can one give a simple characterization of all orbits of $(Z_m)^h$?
By action on $A$ I mean automorphi... | {"url":"http://mathoverflow.net/questions/42160/orbits-in-commutative-groups?sort=newest","timestamp":"2014-04-16T07:32:06Z","content_type":null,"content_length":"52023","record_id":"<urn:uuid:2a8ddc15-7979-46b1-8c1f-e7fa3b36f400>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00530-i... |
Savage, MD SAT Math Tutor
Find a Savage, MD SAT Math Tutor
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Towards in-place geometric algorithms and data structures
, 2005
"... We give space-efficient geometric algorithms for three related problems. Given a set of n axis-aligned rectangles in the plane, we calculate the area covered by the union of these rectangles
(Klee’s measure problem) in O(n 3/2 log n) time with O(√n) ... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=4040081","timestamp":"2014-04-16T21:20:18Z","content_type":null,"content_length":"27921","record_id":"<urn:uuid:a01736b0-01a7-45e1-b818-d67a70cc5cf5>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-00042-ip-10-147-4-33.ec2.internal.wa... |
Million, billion, trillion
Thursday, 12 March 2009 | 3 Comments
I used to think that I knew what 1 billion was, i.e. 1 000 000 000 000. Then a couple of years ago, I looked on Wikipedia and found there were two defintions: Long and short scales.
It seems that changes in the way Australia defines one billion have only o... | {"url":"http://mathsclass.net/comments/million-billion-trillion/","timestamp":"2014-04-21T04:44:54Z","content_type":null,"content_length":"16553","record_id":"<urn:uuid:092f12dc-1603-4ec4-acf1-26de0a865968>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00396-ip-10-147-4-33.ec2.intern... |
Why does Haskell's "flip id" has this type?
up vote 17 down vote favorite
I'm curious about the expression flip id (It's not homework: I found it in the getOpt documentation).
I wonder why it has this type:
Prelude> :t (flip id)
(flip id) :: b -> (b -> c) -> c
For example, (flip id) 5 (+6) gives 11.
I know why id (+6) ... | {"url":"http://stackoverflow.com/questions/12339822/why-does-haskells-flip-id-has-this-type","timestamp":"2014-04-18T06:30:16Z","content_type":null,"content_length":"66857","record_id":"<urn:uuid:11e4c317-e5de-474e-b704-9b6c3a6cfb3a>","cc-path":"CC-MAIN-2014-15/segments/1397609539665.16/warc/CC-MAIN-20140416005219-0021... |
Bits required to encode difference between number of subgraphs with odd number of edges and number of subgraphs with even number of edges
up vote 3 down vote favorite
Let $H = ( V, E )$ be a $k$-uniform connected hypergraph, with $n = |V|$ vertices and $m = |E|$ hyperedges. Let $O_w$ be the number of edge induced subgr... | {"url":"http://mathoverflow.net/questions/141516/bits-required-to-encode-difference-between-number-of-subgraphs-with-odd-number-o","timestamp":"2014-04-16T19:50:05Z","content_type":null,"content_length":"53807","record_id":"<urn:uuid:c6f4d6df-8715-43f3-bb35-a74046282064>","cc-path":"CC-MAIN-2014-15/segments/13976095246... |
Math Help
March 13th 2007, 06:56 AM #1
Junior Member
Mar 2007
Related Rates
problem: A 5 meters ladder is leaning against a vertical wall with the lower end on the floor. If the lower end is pulled away from the wall at a rate of 1 meter/sec, how fast is the upper end of
the ladder moving along the wall wh... | {"url":"http://mathhelpforum.com/calculus/12491-related-rates.html","timestamp":"2014-04-19T17:01:49Z","content_type":null,"content_length":"34919","record_id":"<urn:uuid:bf206aa9-8f66-47fc-94db-0b7e48d88fae>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00338-ip-10-147-4-33.ec2.inte... |
Microsoft® Excel Data Analysis and Business Modeling
Safari Books Online is a digital library providing on-demand subscription access to thousands of learning resources.
Well known consultant, statistician, and business professor Wayne Winston teaches by example the best ways to use Microsoft Excel for data analysis, m... | {"url":"http://my.safaribooksonline.com/0735619018?portal=oreilly&cid=orm-cat-readnow-0735619018","timestamp":"2014-04-18T23:45:20Z","content_type":null,"content_length":"260543","record_id":"<urn:uuid:01afa7ea-4a71-4f1c-be64-dcfc7df12163>","cc-path":"CC-MAIN-2014-15/segments/1397609535535.6/warc/CC-MAIN-20140416005215... |
mathematics :: Linear algebra
Last Updated
Differential equations, whether ordinary or partial, may profitably be classified as linear or nonlinear; linear differential equations are those for which the sum of two solutions is again a
solution. The equation giving the shape of a vibrating string is linear, which provid... | {"url":"http://www.britannica.com/EBchecked/topic/369194/mathematics/66027/Linear-algebra","timestamp":"2014-04-19T10:20:18Z","content_type":null,"content_length":"101802","record_id":"<urn:uuid:2ec733fa-f4a5-400b-8578-91924392f64d>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20140416005217-00228... |
Formal Concept Analysis
Results 1 - 10 of 205
- JOURNAL OF EXPERIMENTAL AND THEORETICAL ARTIFICIAL INTELLIGENCE , 2002
"... Several algorithms that generate the set of all formal concepts and diagram graphs of concept lattices are considered. Some modifications of wellknown algorithms are proposed. Algorithmic
complexi... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=53413","timestamp":"2014-04-16T21:16:21Z","content_type":null,"content_length":"37893","record_id":"<urn:uuid:af78e861-29c5-46ab-9dd5-c7ec964a3c9a>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-00513-ip-10-147-4-33.ec2.internal.warc... |
Bending of space
This is my analogy. Please tell me if it makes any sense.
Let's say, I have a rope of known length l and both the end's co-ordinates (x1, y1, z1) and (x2, y2, z2). With co-ordinate (x1, y1, z1) as the center and radius l, I construct a sphere. If the
co-ordinate (x2, y2, z2) is part of the sphere, I ca... | {"url":"http://www.physicsforums.com/showthread.php?t=311787","timestamp":"2014-04-19T22:45:10Z","content_type":null,"content_length":"54376","record_id":"<urn:uuid:637a54a9-55ad-4656-9875-476ac44bf6ef>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00543-ip-10-147-4-33.ec2.internal.w... |
the definition of triangle inequality
noun Mathematics.
the theorem that the
absolute value
of the sum of two quantities is less than or equal to the sum of the absolute values of the quantities.
the related theorem that the magnitude of the sum of two vectors is less than or equal to the sum of the magnitudes of the v... | {"url":"http://dictionary.reference.com/browse/triangle%20inequality","timestamp":"2014-04-16T12:40:41Z","content_type":null,"content_length":"93342","record_id":"<urn:uuid:b6db4629-4842-4c70-b618-7aeca3402417>","cc-path":"CC-MAIN-2014-15/segments/1397609523265.25/warc/CC-MAIN-20140416005203-00317-ip-10-147-4-33.ec2.in... |
Physics Forums - View Single Post - Power of a thrust to maintain an extended spring
Exhaust stream velocity is not known, or at least beyond my ability to measure accurately.
For a bit more background, I want to measure the efficiency of an
. Mine is very similar to
this one
, but it hangs from a bearing over a bunse... | {"url":"http://www.physicsforums.com/showpost.php?p=4150446&postcount=3","timestamp":"2014-04-19T22:45:25Z","content_type":null,"content_length":"9115","record_id":"<urn:uuid:44801e4b-699c-4ed0-9b5e-3b809e3cff97>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00083-ip-10-147-4-33.ec2.... |
Summary: Computational Mathematics and Mathematical Physics, Vol.40, No.9, 2000, pp. 12391254.
Translated from Zhurnal Vychislitel'noi Matematiki i Matematicheskoi Fiziki, Vol.40, No.9, 2000, pp. 12911307.
Original Russian Text Copyright c
#2000 by Antipin.
English Translation Copyright c
#2000 by MAIK Nauka/Interperio... | {"url":"http://www.osti.gov/eprints/topicpages/documents/record/699/3712152.html","timestamp":"2014-04-20T16:02:14Z","content_type":null,"content_length":"8378","record_id":"<urn:uuid:5cabcca0-e30f-408f-a443-7600da6379b4>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/CC-MAIN-20140416005218-00120-ip-10-147-... |
Zentralblatt MATH
Publications of (and about) Paul Erdös
Zbl.No: 885.01023
Autor: Losonczi, László
Title: Paul Erdös on functional equations: Contributions and impact. (In English)
Source: Aequationes Math. 54, No.3, 221-233 (1997).
Review... | {"url":"http://www.emis.de/classics/Erdos/cit/88501023.htm","timestamp":"2014-04-18T21:16:21Z","content_type":null,"content_length":"3220","record_id":"<urn:uuid:5a136195-c680-4f89-baf9-47fab2bc93a0>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-00559-ip-10-147-4-33.ec2.internal.warc.... |
Boolean Algebra
December 7th 2010, 02:44 PM #1
MHF Contributor
Mar 2010
Boolean Algebra
In order to show a Lattice is a Boolean Algebra, the diagram needs to be bounded, distributive, complemented, and $|L|=2^n \ n\geq 1 \ n\in\mathbb{Z}$.
However, my book says, "A finite lattice is called a Boolean Algebra... | {"url":"http://mathhelpforum.com/discrete-math/165602-boolean-algebra.html","timestamp":"2014-04-16T16:59:45Z","content_type":null,"content_length":"84327","record_id":"<urn:uuid:d8ea0a86-b169-446e-a45f-f980010a2d05>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN-20140416005204-00235-ip-10-147-4-33.... |
Directional Derivative
September 14th 2011, 06:38 AM
Directional Derivative
Ok, so I kept getting an Latex Error:Unknown Error when I tried to enter my stuff in LaTex. Then I scanned my handwritten work and tried to attach it...it just timed out on me everytime. Sorry
this is so primitive, but I just typed ever... | {"url":"http://mathhelpforum.com/calculus/187978-directional-derivative-print.html","timestamp":"2014-04-18T10:41:43Z","content_type":null,"content_length":"8255","record_id":"<urn:uuid:d2f42824-608d-478d-8ba8-73b18e87591b>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00188-ip-10-14... |
Derivative of an integral
August 3rd 2010, 05:31 AM #1
Apr 2010
Derivative of an integral
Differentiate: $f(x) = \int_{0}^{x} \frac {x}{1 + t^2 + sin^2t}dt$
I am not sure how to do this, since there are 2 different variables in the integral (x and t).
Take the x out of the integral (assuming it doesn't ... | {"url":"http://mathhelpforum.com/calculus/152679-derivative-integral.html","timestamp":"2014-04-17T08:25:18Z","content_type":null,"content_length":"32374","record_id":"<urn:uuid:acb4e9ec-df83-4f03-930f-6da0854b7bb8>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-20140416005215-00226-ip-10-147-4-33.ec... |
Petaluma ACT Tutor
Find a Petaluma ACT Tutor
...These opportunities have given me the chance to work with students of all ages. Many have had a debilitating fear of math, which I can personally relate to. As a high school and college
student, mathematics was always my worst subject.
10 Subjects: including ACT Mat... | {"url":"http://www.purplemath.com/petaluma_act_tutors.php","timestamp":"2014-04-18T23:29:39Z","content_type":null,"content_length":"23546","record_id":"<urn:uuid:ff8b700d-be13-4993-894a-8c388a8638bf>","cc-path":"CC-MAIN-2014-15/segments/1397609535535.6/warc/CC-MAIN-20140416005215-00052-ip-10-147-4-33.ec2.internal.warc.... |
A Monte Carlo AIXI Approximation
Joel Veness, Kee Siong Ng, Marcus Hutter and David Silver
arXiv Number 0909.0801, 2009.
This paper describes a computationally feasible approximation to the AIXI agent, a universal reinforcement learning agent for arbitrary environments. AIXI is scaled down in two key ways: First, the
c... | {"url":"http://eprints.pascal-network.org/archive/00005841/","timestamp":"2014-04-16T07:32:21Z","content_type":null,"content_length":"7790","record_id":"<urn:uuid:aee338c2-8853-4155-bbc0-56f077342301>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00482-ip-10-147-4-33.ec2.internal.warc... |
logistic growth problem
August 19th 2009, 12:15 PM #1
Aug 2008
logistic growth problem
The population of fish in a certain lake at time t months is given by the function:
P(t) = 20,000/(1+24e^(-t/4)) , where T is greater than or equal to 0. There is an upper limit on the fish population due to the oxygen su... | {"url":"http://mathhelpforum.com/calculus/98603-logistic-growth-problem.html","timestamp":"2014-04-23T11:27:02Z","content_type":null,"content_length":"44097","record_id":"<urn:uuid:cadc5dd1-d786-48bb-a119-ecb69587073a>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00574-ip-10-147-4-33... |
LKML: Peter Osterlund: Re: [PATCH] Apple USB Touchpad driver (new)
Messages in this thread
Subject Re: [PATCH] Apple USB Touchpad driver (new)
From Peter Osterlund <>
Date 10 Jul 2005 00:48:30 +0200
Vojtech Pavlik <vojtech@suse.cz> writes:
> Btw, what I don't completely understand is why you need linear
> regress... | {"url":"http://lkml.org/lkml/2005/7/9/138","timestamp":"2014-04-17T10:45:47Z","content_type":null,"content_length":"9284","record_id":"<urn:uuid:56604615-24f0-4cf1-961c-fb6366579714>","cc-path":"CC-MAIN-2014-15/segments/1397609527423.39/warc/CC-MAIN-20140416005207-00275-ip-10-147-4-33.ec2.internal.warc.gz"} |
Programming Examples in RPN Mode
Programming on the HP 30b
The HP 30b Business Professional calculator includes a programming capability designed to help automate repetitive calculations and extend the usefulness of the built-in function set of the
calculator. The capability includes the creation of up to 10 separate p... | {"url":"http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&dlc=en&docname=c02047259","timestamp":"2014-04-19T09:32:07Z","content_type":null,"content_length":"199084","record_id":"<urn:uuid:4a427844-f358-4019-b359-0f16993671ef>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00614-i... |
EALR'S and GLE'S (Make the connections clear and specific)
Grade 8
Component 1.5: Understand and apply concepts and procedures from algebraic sense.
Patterns, functions, and other relations
1.5.1 Apply understanding of linear and non-linear relationships to analyze patterns, sequences, and situations. W
· Extend, repre... | {"url":"http://academic.evergreen.edu/curricular/met/Family%20Portraits/LESSON.htm","timestamp":"2014-04-21T04:31:52Z","content_type":null,"content_length":"16358","record_id":"<urn:uuid:c5241dd7-e98e-45e4-ae8c-62e5df66793b>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00491-ip-10-1... |
From Exampleproblems
For the numerical analysis algorithm, see bisection method. For the musical set theory concept see bisector (music).
Bisection is the general activity of dividing something into two parts. In geometry, the concept is limited to divisions into two equal parts, usually by a line, which is then ca... | {"url":"http://exampleproblems.com/wiki/index.php/Bisection","timestamp":"2014-04-20T09:01:28Z","content_type":null,"content_length":"20842","record_id":"<urn:uuid:992e49ad-5a7a-46cb-bc7a-219428b20b60>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00227-ip-10-147-4-33.ec2.internal.war... |
Relationship between the logs of a number with different bases
January 7th 2011, 02:17 PM
Relationship between the logs of a number with different bases
Can anyone explain step by step the relation between the logs of a number to different bases?
If we take a number x and do the following:
What is the relat... | {"url":"http://mathhelpforum.com/algebra/167735-relationship-between-logs-number-different-bases-print.html","timestamp":"2014-04-25T09:18:00Z","content_type":null,"content_length":"12203","record_id":"<urn:uuid:80308e82-ca8b-4a49-87f5-8ad6984daa9e>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-201... |
Sums of Squares and Sums of Cubes
Copyright © University of Cambridge. All rights reserved.
Let $n$ be a whole number. When is it possible to write $n$ as a sum of two squares, say $n=a^2+b^2$, or as a sum of three squares, say $n=a^2+b^2 +c^2$, or as a sum of four squares, and so on? Of
course, $a$, $b$, $c$, $\ldots$... | {"url":"http://nrich.maths.org/1343/index?nomenu=1","timestamp":"2014-04-18T03:14:56Z","content_type":null,"content_length":"9458","record_id":"<urn:uuid:297c023f-a095-49a7-8e8d-43d3a53f4cbf>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00108-ip-10-147-4-33.ec2.internal.warc.gz"} |
Mathematics of Computation
ISSN 1088-6842(online) ISSN 0025-5718(print)
A Note on NUCOMP
Author: Alfred J. van der Poorten
Journal: Math. Comp... | {"url":"http://www.ams.org/journals/mcom/2003-72-244/S0025-5718-03-01518-7/","timestamp":"2014-04-21T05:02:00Z","content_type":null,"content_length":"29273","record_id":"<urn:uuid:6f186584-9edd-4dc1-8c1b-002e0c31a022>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00492-ip-10-147-4-33... |
World Urbanization Prospects, the 2011 Revision
Glossary of Demographic Terms
Variable Definition
Total population De facto population in a country, area or region as of 1 July of the year ... | {"url":"http://esa.un.org/unup/Documentation/WUP_glossary.htm","timestamp":"2014-04-20T05:43:25Z","content_type":null,"content_length":"30920","record_id":"<urn:uuid:dd8aa279-f88e-4ff9-9bbf-307f082c58d5>","cc-path":"CC-MAIN-2014-15/segments/1397609538022.19/warc/CC-MAIN-20140416005218-00330-ip-10-147-4-33.ec2.internal.... |
Approximate Cloaking Using Tranformation Optics and Negative Index Materials
Tuesday, November 27, 2012 at 11:00 am
LA 511
: Hoai-Minh Nguyen
: University of Minnesota
Applied and Interdisciplinary Mathematics Seminar
Cloaking recently attracts a lot of attention from the scientific community due to the progress of adv... | {"url":"http://www.northeastern.edu/physics/event/approximate-cloaking-using-tranformation-optics-and-negative-index-materials/","timestamp":"2014-04-20T21:37:18Z","content_type":null,"content_length":"20256","record_id":"<urn:uuid:6aa715e6-dd97-4330-a0fd-d7953df82670>","cc-path":"CC-MAIN-2014-15/segments/1397609539230... |
What Is Ultimately Possible in Physics?
Written for the "What's Ultimately Possible in Physics?" Fall 2009 FQXi Essay Contest.
This essay uses insights from studying the computational universe to explore questions about possibility and impossibility in the physical universe and in physical theories. It explores the ult... | {"url":"http://www.stephenwolfram.com/publications/what-ultimately-possible-physics/","timestamp":"2014-04-17T19:05:22Z","content_type":null,"content_length":"53387","record_id":"<urn:uuid:5f18b899-ac3e-47e3-abf2-b15242136475>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00659-ip-10... |
Understanding Filter Efficiency and Beta Ratios
Filter ratings are an often misunderstood area of contamination control. On several recent occasions, I have witnessed someone describing a filter by its nominal rating. A nominal rating is an
arbitrary micrometer value given to the filter by the manufacturer. These ratin... | {"url":"http://www.machinerylubrication.com/Read/1289/oil-filter-efficiency","timestamp":"2014-04-19T22:06:19Z","content_type":null,"content_length":"30226","record_id":"<urn:uuid:170b38ba-b796-4eb8-ae93-19b9f6258e63>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00423-ip-10-147-4-33... |
Queuing Theory problem, M/M/1/K queue with twist
July 3rd 2011, 05:49 PM #1
Jul 2011
Queuing Theory problem, M/M/1/K queue with twist
The problem statement
Customers arrive to a register as a poisson process with arrival rate λ and are serviced with an exponential distribution with service rate μ. When a cu... | {"url":"http://mathhelpforum.com/advanced-statistics/184031-queuing-theory-problem-m-m-1-k-queue-twist.html","timestamp":"2014-04-18T05:40:03Z","content_type":null,"content_length":"36406","record_id":"<urn:uuid:b1539f57-a007-4444-8517-d2b338bb6e6b>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-201... |
cofficients of fourier series - File Exchange - MATLAB Central
This function is written to calculate the cofficients of fourier series.
In the function arguments, fs(x,T0,n,type), note that :
x : the fuction that you might to calculate it's fourier series,
*.note that you should enter one period of the periodic functio... | {"url":"http://www.mathworks.com/matlabcentral/fileexchange/41684-cofficients-of-fourier-series","timestamp":"2014-04-19T19:55:40Z","content_type":null,"content_length":"24085","record_id":"<urn:uuid:19976974-fdb7-46ed-b3a8-21738dfdb99c>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-... |