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Mental math program
March 1st 2008, 11:34 PM #1
Mental math program
Okay, I'm decent at math concepts, I usually excel in my courses, but wow am I bad at arithmetic. Adding, subtracting, multiplying, dividing, I need a calculator for these things.
A while back I was looking around the internet, and found an awe... | {"url":"http://mathhelpforum.com/math-software/29683-mental-math-program.html","timestamp":"2014-04-16T19:14:55Z","content_type":null,"content_length":"34077","record_id":"<urn:uuid:0d935b7b-b6cc-4115-86c6-35f5be371238>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-00193-ip-10-147-4-... |
Summary: Planetary motion.
This material comes from an article by Robert Osserman in the American Mathematical Monthly of
July 2001.
Part One. Suppose we have an inertial frame of reference in which a body of constant mass m is
concentrated at the point p and another body of constant mass M is concentrated at the point... | {"url":"http://www.osti.gov/eprints/topicpages/documents/record/304/2826859.html","timestamp":"2014-04-21T13:23:04Z","content_type":null,"content_length":"7763","record_id":"<urn:uuid:aedcfcf1-c183-45a7-9314-931e8f8d1284>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-00142-ip-10-147-... |
E.W.Dijkstra Archive: A Short Introduction to the Art of Programming (EWD 316), Chapter 5
EWD316: A Short Introduction to the Art of Programming
prof.dr.Edsger W... | {"url":"http://www.cs.utexas.edu/~EWD/transcriptions/EWD03xx/EWD316.5.html","timestamp":"2014-04-19T10:48:07Z","content_type":null,"content_length":"33892","record_id":"<urn:uuid:57e3db43-b641-44eb-8b63-93d14f102782>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20140416005217-00586-ip-10-147-4-33.... |
Spatial Data Option Concepts
Oracle7 Spatial Data Option User's Guide and Reference
Library Product Contents Index
S... | {"url":"http://docs.oracle.com/cd/A57673_01/DOC/server/doc/A48124/sdo_intr.htm","timestamp":"2014-04-20T21:52:42Z","content_type":null,"content_length":"57525","record_id":"<urn:uuid:7bd58a08-810a-42de-986a-ba37434cb8ff>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-00228-ip-10-147-4... |
Practical Session 1
Below is an email I sent to the instructor giving him a report of the session last Wednesday. Iβm reluctant to write something from scratch and I think this best summarizes what we did that day. I
really like the group that I have this semester.
The students collaborated effectively today. Each grou... | {"url":"http://martinstheorem.tumblr.com/tagged/teaching","timestamp":"2014-04-17T21:26:13Z","content_type":null,"content_length":"63687","record_id":"<urn:uuid:023a48ec-e667-4ca6-8878-79d1b277d771>","cc-path":"CC-MAIN-2014-15/segments/1398223205375.6/warc/CC-MAIN-20140423032005-00585-ip-10-147-4-33.ec2.internal.warc.g... |
Philosophy, Technology and Math
The sum of consecutive cubes is a square
Summing up some cubes I noticed that 1^3 + 2^3 + 3^3 + 4^3 = 100, which is 10^2. And the pattern held as I added more cubes (i.e., I kept getting squares). This is well known in the world of
mathematics and number theory, but it was new to me. Ext... | {"url":"http://www.mrrives.com/Technology/?p=817","timestamp":"2014-04-21T04:35:11Z","content_type":null,"content_length":"11402","record_id":"<urn:uuid:00e2f2b2-22f8-4f64-aeea-53eb93bd5b74>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00041-ip-10-147-4-33.ec2.internal.warc.gz"} |
Petaluma Trigonometry Tutors
...I finished an MS in chemistry in June of 2010, and have been working as a Teacher's assistant and tutor since then. During this program I taught chem lab to groups of 15 to 20 students, and led
review sessions to over 70 students at a time. I now specialize in tutoring inorganic, org... | {"url":"http://www.algebrahelp.com/Petaluma_trigonometry_tutors.jsp","timestamp":"2014-04-19T17:10:34Z","content_type":null,"content_length":"25264","record_id":"<urn:uuid:84d4765c-5566-46d5-ac97-66500d55a904>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00177-ip-10-147-4-33.ec2.int... |
A New Goodness-Of-Fit Statistical Test
Bruno Apolloni and Simone Bassis
Intelligent Decision Technologies Volume 1, , 2007.
We introduce a new concept of nonparametric test for statistically deciding if a model fits a sample of data well. The employed statistic is the empirical cumulative distribution (e.c.d.f.) of the... | {"url":"http://eprints.pascal-network.org/archive/00003656/","timestamp":"2014-04-19T01:48:56Z","content_type":null,"content_length":"7067","record_id":"<urn:uuid:9494e4ff-18e4-41b5-bca8-78dd2bebb0be>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-20140416005215-00654-ip-10-147-4-33.ec2.internal.warc... |
[FOM] Proof "from the book"
Arnon Avron aa at tau.ac.il
Tue Aug 31 04:33:39 EDT 2004
> Arnon Avron says:
> >A Godel sentence (NOT "the"
> >Godel sentence) for a consistent extension of Q is true, and
> >Godel's proof does show this
> Godel's proof does indeed show the implication "if S is consistent then
> G is ... | {"url":"http://www.cs.nyu.edu/pipermail/fom/2004-August/008433.html","timestamp":"2014-04-16T19:31:39Z","content_type":null,"content_length":"3798","record_id":"<urn:uuid:2d6780d1-6b75-4953-932d-98a3c3a22dc7>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-00578-ip-10-147-4-33.ec2.inte... |
Gamma-Ray Bursts - Apparantly, They Are Absolutely Bright
IV. Activities
1. Apparently, They Are Absolutely Bright
At a press conference discussing the event GRB 990123, Dr. Chryssa Kouveliotou of Universities Space Research Association at the Marshall Space Flight Center said "If the burst had occurred somewhere
in ou... | {"url":"http://imagine.gsfc.nasa.gov/docs/teachers/gammaraybursts/imagine/page10.html","timestamp":"2014-04-21T02:03:10Z","content_type":null,"content_length":"19287","record_id":"<urn:uuid:1e004dbe-cc9b-45cb-b54c-68fb6c9ecb67>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-00309-ip-1... |
A new method for source separation
- IN IEEE WORKSHOP ON NEURAL NETWORKS FOR SIGNAL PROCESSING , 1996
"... Blind separation of independent sources from their convolutive mixtures is a problem in many real world multi-sensor applications. In this paper we present a solution to this problem based on
the information maxim... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=2775187","timestamp":"2014-04-17T14:04:40Z","content_type":null,"content_length":"29314","record_id":"<urn:uuid:6b4a1765-0281-454f-ba3b-618d271536c5>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00654-ip-10-147-4-33.ec2.internal.wa... |
Optimal Seating Arrangements
Date: 07/20/2000 at 11:03:38
From: Ben Schwartz
Subject: Optimal Solution for a Requested Seating Arrangement
My mother encountered this problem when she was planning large
parties. N people are invited, and their invitations ask them to RSVP
with the names of up to k people they would like... | {"url":"http://mathforum.org/library/drmath/view/54294.html","timestamp":"2014-04-21T15:37:23Z","content_type":null,"content_length":"7422","record_id":"<urn:uuid:48adce44-eb08-46d4-884c-9e931b455eec>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00153-ip-10-147-4-33.ec2.internal.war... |
The Mathematica Journal: Volume 9, Issue 2: p-adic Arithmetic
p-adic Arithmetic
Function Expansion
For the space Mahler basis, consisting of the polynomials Vanderput basis, consisting of locally constant functions
Here p-adic expansion
In this section of the package we implement these expansions as Mahler[f,x,n] and ... | {"url":"http://www.mathematica-journal.com/issue/v9i2/contents/Padic/Padic_6.html","timestamp":"2014-04-17T01:46:58Z","content_type":null,"content_length":"8737","record_id":"<urn:uuid:36dddbf4-f71f-4c69-937b-c70c01960814>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00285-ip-10-147-... |
[Scipy-tickets] [SciPy] #1546: stats: test_continuous_basic has broken test
[Scipy-tickets] [SciPy] #1546: stats: test_continuous_basic has broken test
SciPy Trac scipy-tickets@scipy....
Sun Oct 30 14:18:06 CDT 2011
#1546: stats: test_continuous_basic has broken test
Reporter: josefpktd | Owner: somebody
... | {"url":"http://mail.scipy.org/pipermail/scipy-tickets/2011-October/004707.html","timestamp":"2014-04-21T04:42:21Z","content_type":null,"content_length":"4250","record_id":"<urn:uuid:9933e968-7d25-45d3-be27-b5da43961bfd>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00077-ip-10-147-4-... |
A Beginner's Guide to Reasoning about Quantification in ACL2
Major Section: DEFUN-SK
The initial version of this tutorial was written by Sandip Ray. Additions and revisions are welcome. Sandip has said:
``This is a collection of notes that I wrote to remind myself of how to reason about quantifiers when I just sta... | {"url":"http://www.cs.utexas.edu/users/moore/acl2/v3-5/QUANTIFIER-TUTORIAL.html","timestamp":"2014-04-18T11:29:48Z","content_type":null,"content_length":"29705","record_id":"<urn:uuid:c1b725bf-2d9a-46ce-b05e-9fba283336e1>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00098-ip-10-147-... |
The Terrace, NY Prealgebra Tutor
Find a The Terrace, NY Prealgebra Tutor
...If I don't know the answer, I know where to look for it! I majored in literature at Rutgers University and went on to take graduate literature courses. I taught high school and middle school
English for over 10 years.
24 Subjects: includi... | {"url":"http://www.purplemath.com/The_Terrace_NY_Prealgebra_tutors.php","timestamp":"2014-04-18T15:47:46Z","content_type":null,"content_length":"24447","record_id":"<urn:uuid:a5e985ed-c379-423b-9633-56aaaef1f4b7>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-20140416005213-00608-ip-10-147-4-33.ec2.... |
Needham, MA Trigonometry Tutor
Find a Needham, MA Trigonometry Tutor
...I am a second year graduate student at MIT, and bilingual in French and English. I earned my high school diploma from a French high school, as well as a bachelor of science in Computer Science
from West Point. My academic strengths are in mathe... | {"url":"http://www.purplemath.com/Needham_MA_trigonometry_tutors.php","timestamp":"2014-04-21T07:46:43Z","content_type":null,"content_length":"24061","record_id":"<urn:uuid:056d9c2b-2d67-4374-b200-97231ec549ca>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-20140423032002-00477-ip-10-147-4-33.ec2.int... |
Local Extrema Problem
March 28th 2011, 02:08 PM #1
Nov 2009
Let f(x)=(x^(4))(2+sinx^(-1)), if xβ 0
...........0, if x=0
Prove that f is differentiable on R (the real numbers).
Prove that f has an absolute minimum at x=0.
Prove that f ' takes on both positive and negative values in every neighborh... | {"url":"http://mathhelpforum.com/differential-geometry/176109-local-extrema-problem.html","timestamp":"2014-04-17T20:13:08Z","content_type":null,"content_length":"32957","record_id":"<urn:uuid:8d8e9191-e3ae-4875-afae-3b91893d1860>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-20140416005210-00452-i... |
RE: Is this a proof of Pythagorean Theorem?
November 8th 2012, 08:59 PM #1
Junior Member
Apr 2011
RE: Is this a proof of Pythagorean Theorem?
Is this a legitimate proof of the Pythagorean theorem?
We know that Pythagorean triples a, b, c, such that a^2 +b^2 = c^2.
We know that that a = 2n+1, b= 2n(n+1),... | {"url":"http://mathhelpforum.com/geometry/207077-re-proof-pythagorean-theorem.html","timestamp":"2014-04-16T18:01:05Z","content_type":null,"content_length":"41251","record_id":"<urn:uuid:9691961e-c56d-4329-aa57-e02fd15aeb38>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN-20140416005204-00595-ip-10-1... |
Napoleon Triangle
One of the greatest military leaders in history, Napoleon Bonaparte, was also an amateur mathematician and is credited for the following result.
If equilateral triangles are constructed on the sides of any triangle then the centres joining the constructed triangles will always form an equilateral tria... | {"url":"http://mathschallenge.net/view/napoleon_triangle","timestamp":"2014-04-20T18:58:51Z","content_type":null,"content_length":"4434","record_id":"<urn:uuid:ecf070bf-1911-42b3-93d8-3b9e23a324f7>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416005219-00394-ip-10-147-4-33.ec2.internal.warc.g... |
Wheat Ridge Algebra 1 Tutor
Find a Wheat Ridge Algebra 1 Tutor
...This is when things start making sense and you begin to feel like you are mastering the subject, not just "getting by." Of course, the trick is to play at it every day and really concentrate!!
I am an experienced middle school, high school, and adult... | {"url":"http://www.purplemath.com/wheat_ridge_co_algebra_1_tutors.php","timestamp":"2014-04-16T21:56:19Z","content_type":null,"content_length":"24118","record_id":"<urn:uuid:761c9768-7326-4b86-9fa4-f1026ec85366>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00587-ip-10-147-4-33.ec2.i... |
Rex and Ralph: Mystery Number
Category: Math
Submitted By: javaguru
Two mathematicians, Rex and Ralph, have an ongoing competition to stump each other. Ralph was impressed by the ingenuity of Rex's last attempt using clues involving prime numbers, but he thinks he's
got an even better one for Rex. He tells Rex he... | {"url":"http://www.braingle.com/palm/teaser.php?op=1&id=44017&comm=0","timestamp":"2014-04-21T08:07:49Z","content_type":null,"content_length":"6127","record_id":"<urn:uuid:5846affc-d3f0-47e7-9c79-1af390799817>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00178-ip-10-147-4-33.ec2.int... |
ABC Online Forum
Dude, gravity "is" the way certain things with this property we call gravitational mass appear to attract other things with the same property.
Forces, rubbery rulers, bending space-time, etc are just descriptions, models. They're tools that let us say, ok we know the state at A, now we can predict it a... | {"url":"http://www2b.abc.net.au/science/k2/stn/archives/archive34/newposts/226/topic226314.shtm","timestamp":"2014-04-17T02:30:18Z","content_type":null,"content_length":"23171","record_id":"<urn:uuid:1f13989b-4bc3-4768-8667-6b04c23499af>","cc-path":"CC-MAIN-2014-15/segments/1397609526102.3/warc/CC-MAIN-20140416005206-0... |
Patent application title: MASKED DIGITAL SIGNATURES
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The present invention relates to digital signature operations using public key schemes in a secure communications system and in particular for use with processors ... | {"url":"http://www.faqs.org/patents/app/20110258455","timestamp":"2014-04-16T09:16:10Z","content_type":null,"content_length":"54159","record_id":"<urn:uuid:39faef6f-b69d-4121-95be-4a659f046edd>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00275-ip-10-147-4-33.ec2.internal.warc.gz"} |
Given The Network In The Figure Below, Find The ... | Chegg.com
Please help! Find real/imaginary part of Voc & Zth
Image text transcribed for accessibility: Given the network in the figure below, find the Thevenin's equivalent of the network at the terminals A-B. Find the real part of VOC. Find the imaginary part
of VO... | {"url":"http://www.chegg.com/homework-help/questions-and-answers/given-network-figure-find-thevenin-s-equivalent-network-terminals-b-find-real-part-voc-fin-q3950373","timestamp":"2014-04-19T13:16:15Z","content_type":null,"content_length":"20815","record_id":"<urn:uuid:be6113fe-a5a0-466a-9692-f461ca5e8ae8>","cc-path":"C... |
Non-traditional mathematics curriculum results in higher standardized test scores, MU study finds
Public release date: 16-Sep-2013
[ | E-mail ]
Contact: Nathan Hurst
University of Missouri-Columbia
Non-traditional mathematics curriculum results in higher standardized test scores, MU study finds
COLUMBIA, Mo. -- For m... | {"url":"http://www.eurekalert.org/pub_releases/2013-09/uom-nmc091613.php","timestamp":"2014-04-19T14:40:45Z","content_type":null,"content_length":"9136","record_id":"<urn:uuid:c5a2639f-4c12-41a9-8db5-67fcc6000d30>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00535-ip-10-147-4-33.ec2.... |
How to prove that this Norm is COMPATIBLE?
May 20th 2011, 05:58 AM #1
May 2011
How to prove that this Norm is COMPATIBLE?
Please refer attachment for the problem. I need to prove that the given norm is COMPATIBLE. Please help me solve this.
Thank you!
Start in the following way: if $A=(a_{ij})\in\mathbb... | {"url":"http://mathhelpforum.com/advanced-algebra/181144-how-prove-norm-compatible.html","timestamp":"2014-04-17T01:03:32Z","content_type":null,"content_length":"33816","record_id":"<urn:uuid:d1d7c216-f266-4bd6-bd21-257b3b211110>","cc-path":"CC-MAIN-2014-15/segments/1397609526102.3/warc/CC-MAIN-20140416005206-00035-ip-... |
Homomorphisms of Lie groups preserving regularity
up vote 4 down vote favorite
Let $G_1, G_2$ be connected semisimple Lie groups, let us assume for simplicity that both groups are complex (even though, I am interested in the real Lie groups as well). Let $f: G_1\to G_2$ be a
monomorphism which sends regular semisimple ... | {"url":"http://mathoverflow.net/questions/130038/homomorphisms-of-lie-groups-preserving-regularity","timestamp":"2014-04-18T16:17:04Z","content_type":null,"content_length":"64793","record_id":"<urn:uuid:6bd40f4c-3f59-4fc3-af05-8901a0ac218b>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-201404160052... |
Question about perspective and which mountain is taller
It is the question on page ten of this link http://www.educationaldesigner.org/e...dt_09_fig3.pdf I am having particular trouble with the last part about which mountain appears taller please help
me. Also could you please explain how you got the answer as ... | {"url":"http://mathhelpforum.com/geometry/203964-question-about-perspective-mountain-taller.html","timestamp":"2014-04-21T11:54:04Z","content_type":null,"content_length":"44122","record_id":"<urn:uuid:b7e999b3-514b-4f3a-b134-d46357fada5e>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416005219... |
Klein 2-Geometry VIII
Posted by David Corfield
As John said:
categorification is a very broad project, like a huge tidal wave hitting the whole length of the shoreline. If certain parts donβt advance as fast as others, itβs really no big deal.
Weβve been trying to ride other parts of the wave of late, so thereβs no... | {"url":"http://golem.ph.utexas.edu/category/2006/12/klein_2geometry_viii.html","timestamp":"2014-04-21T09:39:44Z","content_type":null,"content_length":"10877","record_id":"<urn:uuid:c844fe55-4049-40a1-a97d-75577894ad6a>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416005219-00233-ip-10-147-4-... |
Re: equal loudness calculation
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Re: equal loudness calculation
This is the analitic equation for A-Weighting.
thank you, this is quite exactly what I was looking for.
Just, pass it to Z domain and use "a" and "b" coef. in a IIR filter.
in... | {"url":"http://www.auditory.org/mhonarc/2005/msg00279.html","timestamp":"2014-04-19T12:01:16Z","content_type":null,"content_length":"6128","record_id":"<urn:uuid:3b310751-a594-4cd2-ba37-fd6e422a05ff>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00599-ip-10-147-4-33.ec2.internal.warc... |
Proceedings in Applied Mathematics 122
Symposium held in Miami, Florida, January 22β24, 2006.
This symposium is jointly sponsored by the ACM Special Interest Group on Algorithms and Computation Theory and the SIAM Activity Group on Discrete Mathematics.
Preface; Acknowledgments; Session 1A: Confronting Hardness Using a... | {"url":"http://www.ec-securehost.com/SIAM/PR122.html","timestamp":"2014-04-17T15:46:44Z","content_type":null,"content_length":"19317","record_id":"<urn:uuid:d71688eb-ea14-41a0-b3c9-879a04281f3f>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00585-ip-10-147-4-33.ec2.internal.warc.gz"} |
Patente US5936720 - Beam characterization by wavefront sensor
The Government has rights to this invention pursuant to Contract No. DE-AC04-94AL85000 awarded by the U.S. Department of Energy.
The present invention is of a two-dimensional (preferably Shack-Hartmann) wavefront sensor that uses micro optic lenslet arrays t... | {"url":"http://www.google.es/patents/US5936720?dq=flatulence","timestamp":"2014-04-20T23:38:30Z","content_type":null,"content_length":"142473","record_id":"<urn:uuid:9a084faf-b6d4-4552-8f78-9cddb6b3e7f9>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00604-ip-10-147-4-33.ec2.internal.w... |
linear transformation
January 11th 2007, 06:36 AM
linear transformation
talking of linear functions: the theorem says a function f: Rn->Rm is linear if and only if there exists the matrix A such that f(x)=Ax, the A is unique and the euclidean basis in Rn and Rm are
fixed. Ok, I understood the proof and the rema... | {"url":"http://mathhelpforum.com/advanced-algebra/9846-linear-transformation-print.html","timestamp":"2014-04-20T14:59:38Z","content_type":null,"content_length":"9375","record_id":"<urn:uuid:e370bc88-c78b-42bb-906d-992d29346221>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00487-ip-... |
Robot brains? Can't make 'em, can't sell 'em
Why dopes still beat boffins
High performance access to file storage
At every level, even specialists lack conceptual clarity.Let's look at a few examples taken from current academic debates.
We lack a common mathematical language for generic sensory input - tactile, video, ... | {"url":"http://www.theregister.co.uk/2007/06/28/softky_robots_part_two?page=2","timestamp":"2014-04-16T18:00:58Z","content_type":null,"content_length":"51612","record_id":"<urn:uuid:5f6a8810-eea6-4361-9440-23e99a237ed7>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN-20140416005204-00507-ip-10-147-4-... |
Standard Deviation
Standard Deviation and Variance (1 of 2)
The variance and the closely-related
standard deviation
are measures of how
out a distribution is. In other words, they are measures of variability.
The variance is computed as the average squared deviation of each number from its mean. For example, for the ... | {"url":"http://davidmlane.com/hyperstat/A16252.html","timestamp":"2014-04-21T09:37:34Z","content_type":null,"content_length":"6798","record_id":"<urn:uuid:9ac0df79-8302-45fe-b867-4f2806097b80>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140423032006-00043-ip-10-147-4-33.ec2.internal.warc.gz"} |
Summary: A Spectral Method for Elliptic Equations:
The Neumann Problem
Kendall Atkinson
Departments of Mathematics & Computer Science
The University of Iowa
David Chien, Olaf Hansen
Department of Mathematics
California State University San Marcos
July 6, 2009
Let be an open, simply connected, and bounded region in Rd
,... | {"url":"http://www.osti.gov/eprints/topicpages/documents/record/884/1901589.html","timestamp":"2014-04-17T01:34:07Z","content_type":null,"content_length":"8031","record_id":"<urn:uuid:3d0ad4da-eec6-4847-9131-fa24ec547e6d>","cc-path":"CC-MAIN-2014-15/segments/1397609526102.3/warc/CC-MAIN-20140416005206-00206-ip-10-147-4... |
The Random Coupling Model
The Random Coupling Model: A User's Guide (updated 27 March, 2013)
Steven M. Anlage, Thomas Antonsen, James Hart, Sameer Hemmady, Jen-Hao Yeh, John Rodgers, Gabriele Gradoni, Edward Ott, Xing Zh... | {"url":"http://www.csr.umd.edu/anlage/RCM/index.htm","timestamp":"2014-04-20T05:43:40Z","content_type":null,"content_length":"32833","record_id":"<urn:uuid:43cd2c1f-cf6e-472d-a25a-8b742a56bc28>","cc-path":"CC-MAIN-2014-15/segments/1397609538022.19/warc/CC-MAIN-20140416005218-00202-ip-10-147-4-33.ec2.internal.warc.gz"} |
The use of probability in QM
It reminds me of the aether of LET - yea its a valid theory but you have to ask - why bother? Of course the answer is philosophical - I however prefer the simpler answer of no pilot wave and no
aether - but everyone is different - to each his/her own.
I agree with you that interpretations a... | {"url":"http://www.physicsforums.com/showthread.php?p=3932691","timestamp":"2014-04-19T22:14:24Z","content_type":null,"content_length":"95179","record_id":"<urn:uuid:c670a3f4-e33c-4c66-a598-ab7f68860cb8>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00161-ip-10-147-4-33.ec2.internal.... |
Video Analysis of a Tank Round | Science Blogs | WIRED
β’ By Rhett Allain
β’ 11.12.13 |
β’ 8:26 am |
Personally, Iβm not a big fan of being fired at by a tank β itβs just a personal thing. However, in this case it looks like the tank is firing at some type of remote camera (hopefully).
Speed and Distance Estimate
Th... | {"url":"http://www.wired.com/2013/11/video-analysis-of-a-tank-round/","timestamp":"2014-04-18T04:02:57Z","content_type":null,"content_length":"105642","record_id":"<urn:uuid:dc69de72-2729-489c-80bb-b33950311ca7>","cc-path":"CC-MAIN-2014-15/segments/1398223206770.7/warc/CC-MAIN-20140423032006-00180-ip-10-147-4-33.ec2.in... |
MathGroup Archive: October 2004 [00206]
[Date Index] [Thread Index] [Author Index]
Re: Integrating Feynman integrals in mathematica
β’ To: mathgroup at smc.vnet.net
β’ Subject: [mg51169] Re: Integrating Feynman integrals in mathematica
β’ ... | {"url":"http://forums.wolfram.com/mathgroup/archive/2004/Oct/msg00206.html","timestamp":"2014-04-19T19:45:30Z","content_type":null,"content_length":"38518","record_id":"<urn:uuid:be348631-9f28-4396-8fdf-e3bf6d49848c>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00510-ip-10-147-4-33.... |
FOM: Re: 102:Turing Degrees/2
Jeffrey Ketland ketland at ketland.fsnet.co.uk
Mon Apr 9 20:28:25 EDT 2001
Harvey Friedman:
>The following is a restatement of a theorem from Turing Degrees/1.
>Let Z2 be the usual first order system of second order arithmetic. Let Z2+
>be Z2 with a satisfaction predicate added and inducti... | {"url":"http://www.cs.nyu.edu/pipermail/fom/2001-April/004864.html","timestamp":"2014-04-18T10:34:45Z","content_type":null,"content_length":"3478","record_id":"<urn:uuid:783d1d7e-17a7-4f4d-97cd-cb7815a0922c>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00250-ip-10-147-4-33.ec2.inter... |
Categorization as probability density estimation
Results 1 - 10 of 55
- PSYCHOLOGICAL REVIEW , 1998
"... A neuropsychological theory is proposed that assumes category learning is a competition between separate verbal and implicit (i.e., procedural-learning-based) categorization systems. The theory
assumes that the caud... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=1496835","timestamp":"2014-04-17T07:18:22Z","content_type":null,"content_length":"42072","record_id":"<urn:uuid:24e991a6-bebe-4acd-a0a6-9852bf901a9d>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00619-ip-10-147-4-33.ec2.internal.wa... |
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Origin of the theorem on the existence of the smallest field of definition of an affine variety
up vote 3 down vote favorite
Weil proved the following theorem in his book Foundations of Algebraic Geometry, p.19. The proof is somewhat involved. I wonder if the theorem is his original.
Theorem Let $K[X_1,\dots, X_n]$ be ... | {"url":"https://mathoverflow.net/questions/110939/origin-of-the-theorem-on-the-existence-of-the-smallest-field-of-definition-of-an","timestamp":"2014-04-21T02:49:48Z","content_type":null,"content_length":"69022","record_id":"<urn:uuid:542425ab-ae35-4c0c-a2ff-1eac609711b3>","cc-path":"CC-MAIN-2014-15/segments/1397609539... |
Collinear points formed by a measurement on a square's perimeter
July 29th 2011, 01:20 AM #1
Junior Member
Jul 2011
Collinear points formed by a measurement on a square's perimeter
Let a square ABCD with sides of length 1 be given. A point X on BC is at distance d
from C, and a point Y on CD is at distance ... | {"url":"http://mathhelpforum.com/geometry/185288-collinear-points-formed-measurement-square-s-perimeter.html","timestamp":"2014-04-21T16:52:28Z","content_type":null,"content_length":"40096","record_id":"<urn:uuid:54625a53-8387-4305-944f-9be3a5001188>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20... |
Imperial Beach Math Tutor
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I have been an Elementary School educator for the past ten years. I have extensive experience working with English Language Learners, and Special Education Students. I hold a Bachelors degree in
History with an emphasis in Latin American Studies.
9 Subjec... | {"url":"http://www.purplemath.com/imperial_beach_ca_math_tutors.php","timestamp":"2014-04-16T13:24:11Z","content_type":null,"content_length":"23960","record_id":"<urn:uuid:310f8ecc-995a-43fb-8edf-35a90f2d0c33>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00365-ip-10-147-4-33.ec2.int... |
Elmhurst, NY Geometry Tutor
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...I was a math major at Washington University in St. Louis, and minored in German, economics, and writing. While there, I tutored students in everything from counting to calculus, and beyond.
26 Subjects: including geometry, physics, calculus, stati... | {"url":"http://www.purplemath.com/Elmhurst_NY_geometry_tutors.php","timestamp":"2014-04-19T10:09:25Z","content_type":null,"content_length":"23984","record_id":"<urn:uuid:619ff5ba-c5a3-4401-8848-2487720863ac>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20140416005217-00423-ip-10-147-4-33.ec2.inter... |
Homework Help
Posted by jasort20 on Sunday, March 18, 2007 at 1:35am.
can someone help explain this for me please...
Problem #1
What values for x must be excluded in the following fraction?
Problem #2
what values for x must be excluded in the following fraction?
When working with fractions, the denominator (part on the... | {"url":"http://www.jiskha.com/display.cgi?id=1174196151","timestamp":"2014-04-17T21:34:01Z","content_type":null,"content_length":"10296","record_id":"<urn:uuid:b2f13a7c-07a9-4f95-94ae-d0c769c96826>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-00244-ip-10-147-4-33.ec2.internal.warc.g... |
examples pertaining to bind-free hypotheses
Major Section: BIND-FREE
See bind-free for a basic discussion of the use of bind-free to control rewriting.
We give examples of the use of bind-free hypotheses from the perspective of a user interested in reasoning about arithmetic, but it should be clear that bind-free can ... | {"url":"http://planet.racket-lang.org/package-source/cce/dracula.plt/1/1/language/acl2-html-docs/BIND-FREE-EXAMPLES.html","timestamp":"2014-04-17T04:15:57Z","content_type":null,"content_length":"7367","record_id":"<urn:uuid:743804b6-c24d-4446-a5ed-6981029a3127>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/... |
Suitland Calculus Tutor
...I enjoy every minute of it, and it's been one of the most rewarding experiences of my life so far, one that has inspired me to become a secondary math teacher. I value a student's desire to
learn and commitment to having a good educational relationship. Being open about your needs, concer... | {"url":"http://www.purplemath.com/Suitland_Calculus_tutors.php","timestamp":"2014-04-20T13:26:36Z","content_type":null,"content_length":"24076","record_id":"<urn:uuid:0a8085c2-69ec-45fa-a468-674ac6012f2c>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00101-ip-10-147-4-33.ec2.internal... |
What's a good way to rewrite this non-tail-recursive function?
up vote 11 down vote favorite
For some reason, I am having trouble thinking of a good way to rewrite this function so it uses constant stack space. Most online discussions of tree recursion cheat by using the Fibonacci function
and exploiting the properties... | {"url":"http://stackoverflow.com/questions/315507/whats-a-good-way-to-rewrite-this-non-tail-recursive-function","timestamp":"2014-04-16T16:32:00Z","content_type":null,"content_length":"104668","record_id":"<urn:uuid:19f480bf-423b-4272-a5dc-e3c273b5fa4a>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN... |
NAG Library
NAG Library Routine Document
1 Purpose
D02PXF computes the solution of a system of ordinary differential equations using interpolation anywhere on an integration step taken by
2 Specification
SUBROUTINE D02PXF ( TWANT, REQEST, NWANT, YWANT, YPWANT, F, WORK, WRKINT, LENINT, IFAIL)
INTEGER NWANT, L... | {"url":"http://www.nag.com/numeric/fl/nagdoc_fl24/html/D02/d02pxf.html","timestamp":"2014-04-20T18:34:52Z","content_type":null,"content_length":"39880","record_id":"<urn:uuid:f806deb6-0b1e-438d-a4a7-62bb4e0bd62e>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00207-ip-10-147-4-33.ec2.... |
Precise tests of low energy QCD from decay properties
Precise tests of low energy QCD from decay properties
Dipartimento di Fisica Sperimentale dellβUniversitΓ e Sezione dellβINFN di Torino, 10125 Torino, Italy; University of Birmingham, Edgbaston, Birmingham, B15 2TT UK; UniversitΓ di Roma βLa Sapienzaβ e
Sezzione del... | {"url":"http://www.researchgate.net/publication/226300754_Precise_tests_of_low_energy_QCD_from_decay_properties","timestamp":"2014-04-17T07:16:58Z","content_type":null,"content_length":"306735","record_id":"<urn:uuid:22ab3ad0-b870-4221-9044-13352b10d060>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAI... |
Introduction to Switched Capacitor Circuits
Created by Kat Kim
1 Introduction
Switched capacitor circuits are commonly used conο¬guration to replace a resistor with
switches and capacitors. There are many diο¬erent conο¬gurations, but the main idea is
to pass charge into and out of a ca... | {"url":"http://www.docstoc.com/docs/7672042/Introduction-to-Switched-Capacitor-Circuits","timestamp":"2014-04-18T16:43:32Z","content_type":null,"content_length":"61628","record_id":"<urn:uuid:a2f3213b-806a-4f28-aae0-32ea37c2b743>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-20140416005213-00472-ip... |
Boyle Heights, CA SAT Math Tutor
Find a Boyle Heights, CA SAT Math Tutor
...My educational background includes a Ph.D. in physical chemistry and a B.Sc. in chemical engineering. More than 10 years of experience in teaching math from middle school-level, high
school-level and college-level students. Extensive experi... | {"url":"http://www.purplemath.com/Boyle_Heights_CA_SAT_math_tutors.php","timestamp":"2014-04-21T10:30:11Z","content_type":null,"content_length":"24500","record_id":"<urn:uuid:7bdb9234-af68-4092-b621-8700dd1b84a0>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416005219-00657-ip-10-147-4-33.ec2.... |
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On an Extension of the Maximum-flow Minimum-cut Theorem to Multicommodity Flows
Results 1 - 10 of 33
- in Proceedings of the 42nd Allerton Annual Conference on Communication, Control, and Computing , 2004
"... In this paper, we investigate the benefit of network coding over routing for multiple independent unicast tran... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=58598","timestamp":"2014-04-19T21:00:14Z","content_type":null,"content_length":"37424","record_id":"<urn:uuid:0af3eda2-270b-458f-ac87-c0f666ec0772>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-00618-ip-10-147-4-33.ec2.internal.warc... |
Posts from November 2009 on Programming Praxis
A mathematician purchased four items in a grocery store. He noticed that when he added the prices of the four items, the sum came to $7.11, and when he multiplied the prices of the four items, the
product came to $7.11.
Your task is to determine the prices of the four item... | {"url":"http://programmingpraxis.com/2009/11/","timestamp":"2014-04-17T21:24:14Z","content_type":null,"content_length":"51098","record_id":"<urn:uuid:3fddbbe4-ae7d-4bd4-8c75-eb61ca5a151a>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-00000-ip-10-147-4-33.ec2.internal.warc.gz"} |
06-XX Order, lattices, ordered algebraic structures [See also 18B35]
06-00 General reference works (handbooks, dictionaries, bibliographies, etc.)
06-01 Instructional exposition (textbooks, tutorial papers, etc.)
06-02 Research exposition (monographs, survey articles)
... | {"url":"http://ams.org/mathscinet/msc/msc2010.html?t=06-XX","timestamp":"2014-04-19T07:52:53Z","content_type":null,"content_length":"13306","record_id":"<urn:uuid:fc63e359-4acd-4f67-a6c9-5e4794cbcb7d>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-20140423032002-00336-ip-10-147-4-33.ec2.internal.warc... |
Christoph Petermann Homepage
Free Space Pathloss Calculation and EME link budget
by DF9CY Christoph Petermann Β©
β’ Part 1
JAVA application for EME budget calculation
β’ Part 2
EXCEL Spreadsheet
β’ Part 3
Part 1 - JAVA application
Please let me know, if you like this calculator. The JAVA source code of EME ... | {"url":"http://www.df9cy.de/tech-mat/pathloss.htm","timestamp":"2014-04-17T12:37:11Z","content_type":null,"content_length":"9369","record_id":"<urn:uuid:b1af6c03-4a9b-4d0c-90c8-6c6fdfc00a8a>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00396-ip-10-147-4-33.ec2.internal.warc.gz"} |
Need help with finding this antiderivative (Need explanation of steps to find answer)
February 22nd 2013, 11:57 PM #1
Feb 2013
Need help with finding this antiderivative (Need explanation of steps to find answer)
Hi, I need help figuring out how to work the following problem. The problem has already been worked... | {"url":"http://mathhelpforum.com/calculus/213634-need-help-finding-antiderivative-need-explanation-steps-find-answer.html","timestamp":"2014-04-19T23:45:08Z","content_type":null,"content_length":"33824","record_id":"<urn:uuid:3524cc7a-7e19-4df6-a660-7c4ae2c5f517>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/wa... |
July 24, 2003
Santa Barbara, Calif. --Three years before he received the Nobel Prize in Physics, Eugene Wigner published an article entitled "The Unreasonable Effectiveness of Mathematics in the Natural Sciences"
(1960). He marveled at how often physicists develop concepts to describe the "real" world only to discover ... | {"url":"https://www.engr.ucsb.edu/news/64/","timestamp":"2014-04-19T07:09:55Z","content_type":null,"content_length":"21209","record_id":"<urn:uuid:4bf5430c-f7cc-408e-9e2e-6390e2d539bc>","cc-path":"CC-MAIN-2014-15/segments/1398223207985.17/warc/CC-MAIN-20140423032007-00492-ip-10-147-4-33.ec2.internal.warc.gz"} |
implicit differentiation (horizontal tangent line)
Given the curve $x^2+xy+y^2=9$
a) Find $y'$
Taking the derivative of the above equation and using product rule for xy, i get,
$2x+(y+xyy')+2yy' = 0$
$xy'+2yy' = -2x-y$
$y' = (-2x-y)/(x+2y)$
b) Find all points on the curve at which the tangen... | {"url":"http://mathhelpforum.com/calculus/113983-implicit-differentiation-horizontal-tangent-line.html","timestamp":"2014-04-21T10:27:23Z","content_type":null,"content_length":"37602","record_id":"<urn:uuid:49842792-3610-472f-a072-17f4f1f1eb3e>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416... |
Math puzzles
Search Results: 'Math puzzles'
PUZZLE MATH: Trigonometry and Logarithms
Paperback: $21.08
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This is a collection of 20 math worksheets on trigonometry and logarithms. They provide instant feedback and fun to students because the answers correspond to letters or images that decode s... | {"url":"http://www.lulu.com/shop/search.ep?keyWords=Math%20puzzles","timestamp":"2014-04-17T02:02:35Z","content_type":null,"content_length":"113401","record_id":"<urn:uuid:6eaea822-ea04-4e64-b930-0f33144fda9a>","cc-path":"CC-MAIN-2014-15/segments/1397609526102.3/warc/CC-MAIN-20140416005206-00616-ip-10-147-4-33.ec2.inte... |
chararray.astype(dtype, order='K', casting='unsafe', subok=True, copy=True)ΒΆ
Copy of the array, cast to a specified type.
dtype : str or dtype
Typecode or data-type to which the array is cast.
order : {βCβ, βFβ, βAβ, βKβ}, optional
Controls the mem... | {"url":"http://docs.scipy.org/doc/numpy-dev/reference/generated/numpy.chararray.astype.html","timestamp":"2014-04-19T19:35:06Z","content_type":null,"content_length":"9853","record_id":"<urn:uuid:40de313e-ae89-434a-8018-4b3f4de51bb8>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140423032006-00383... |
Steig's Verification Statistics - Part 2 (A little more majic)
Recent Comments
Jeff Id on Clarification of Understanding
j ferguson on Clarification of Understanding
Alex Hamilton on Clarification of Understanding
omanuel on Clarification of Understanding
Ckg The Don on Priceless Entertainment fromβ¦
WV cool... | {"url":"https://noconsensus.wordpress.com/2009/04/28/2222/","timestamp":"2014-04-19T14:29:56Z","content_type":null,"content_length":"148970","record_id":"<urn:uuid:2117cdeb-b6e8-40a8-9901-6ebf4321a6bd>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-00564-ip-10-147-4-33.ec2.internal.war... |
Multiresolution representation of data: a general framework
Results 1 - 10 of 28
- J. Fourier Anal. Appl , 1998
"... ABSTRACT. This paper is essentially tutorial in nature. We show how any discrete wavelet transform or two band subband filtering with finite filters can be decomposed into a finite sequence of
simple fil... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=980163","timestamp":"2014-04-20T19:51:51Z","content_type":null,"content_length":"37454","record_id":"<urn:uuid:83bcf414-3fb1-4552-8a72-9096cb3ec9b9>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00428-ip-10-147-4-33.ec2.internal.war... |
$Standard, Robust, and Clustered Standard Errors Computed in R$
Where do these come from? Since most statistical packages calculate these estimates automatically, it is not unreasonable to think that many researchers using applied econometrics are unfamiliar with
the exact details of their computation. For the purposes... | {"url":"http://www.r-bloggers.com/tag/cluster/","timestamp":"2014-04-18T10:48:45Z","content_type":null,"content_length":"26964","record_id":"<urn:uuid:3d32f2d9-8e27-47fd-81bf-180a8a776ce8>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00354-ip-10-147-4-33.ec2.internal.warc.gz"} |
Physics Forums - View Single Post - Finding the solution to an IVP Problem. Basic Differential Equations problem.
Quote by
Integrate 2t^8e^2t using integration by parts- 8 times!
Thanks for everyone else and this is what I ended up doing. It was the correct way of solving the problem even though it was a little bit of... | {"url":"http://www.physicsforums.com/showpost.php?p=3376199&postcount=5","timestamp":"2014-04-21T09:44:29Z","content_type":null,"content_length":"7703","record_id":"<urn:uuid:f9637a1d-1833-4803-a40b-e51d40649610>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416005219-00401-ip-10-147-4-33.ec2.... |
MathGroup Archive: January 2010 [00459]
[Date Index] [Thread Index] [Author Index]
Re: inequality as constraints on NDSolve +Integral...
β’ To: mathgroup at smc.vnet.net
β’ Subject: [mg106514] Re: inequality as constraints on NDSolve +Integ... | {"url":"http://forums.wolfram.com/mathgroup/archive/2010/Jan/msg00459.html","timestamp":"2014-04-16T10:27:19Z","content_type":null,"content_length":"27659","record_id":"<urn:uuid:1463afc8-d3fc-4e31-b822-3dc5be81f992>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-00088-ip-10-147-4-33.e... |
David Bryant's Homepage
David Bryant
Associate Professor
Director of Computational Modeling (COMO)
University of Otago
β‘ Associate Professor of Mathematical Biology, University of Auckland, 2008--10
β‘ Senior Lecturer in Mathematical Biology, University of Auckland, 2005-2007
β‘ Associate Professor,... | {"url":"http://www.maths.otago.ac.nz/~dbryant/","timestamp":"2014-04-17T18:23:38Z","content_type":null,"content_length":"5452","record_id":"<urn:uuid:30703949-7ed2-4549-99e1-e928feca859d>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-00535-ip-10-147-4-33.ec2.internal.warc.gz"} |
MathFiction: The Return of Moriarty (John Gardner)
Contributed by "William E. Emba"
The British spy thriller novelist, perhaps now best known for his 007 novels, wrote three novels starring Professor Moriarty, THE RETURN OF MORIARTY (UK title MORIARTY), THE REVENGE OF MORIARTY
(1975), and a never published third novel ... | {"url":"http://kasmana.people.cofc.edu/MATHFICT/mfview.php?callnumber=mf443","timestamp":"2014-04-19T15:31:54Z","content_type":null,"content_length":"10743","record_id":"<urn:uuid:acbfd192-5fd2-4189-b2ee-670045631fde>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-00378-ip-10-147-4-33.... |
Drawing cards without replacement.
January 22nd 2010, 04:27 PM #1
Jan 2010
Drawing cards without replacement.
Two cards are drawn without replacement from a shuffled deck of 52 cards. What is the probability that the second card is a king?
Solutions showing step-by-step is very much appreciated.
Thank y... | {"url":"http://mathhelpforum.com/statistics/124972-drawing-cards-without-replacement.html","timestamp":"2014-04-18T17:05:32Z","content_type":null,"content_length":"49834","record_id":"<urn:uuid:1eebe884-5e82-4bed-bfad-5d20ecf91a39>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-20140416005213-00226-... |
Eigen-who? How Can I Write About Eigen-anything and Expect You to Read?
May 25, 2011
By klr
After the very nice Convore reply
@timelyportfolio some of your posts include "eigenvalue ratio plots" -- kindly tell us what they show and how they might be useful in constructing a portfolio.
I felt like I should at least ... | {"url":"http://www.r-bloggers.com/eigen-who-how-can-i-write-about-eigen-anything-and-expect-you-to-read/","timestamp":"2014-04-19T01:50:32Z","content_type":null,"content_length":"62079","record_id":"<urn:uuid:d67730eb-4376-40c2-9b15-fc2a49761f2a>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-2014041... |
constant length bezier curve
(edited several times):
I'll start:
[tex]\vec{P}= P_x \hat{i}+P_y \hat{j}[/tex]
[tex]\vec{Q}= \vec{0}[/tex] (without loss of generality), and
[tex]L = \| QR \| = \sqrt{R_x^2 + R_y^2}[/tex] (for variable R)
And we define, for arbitrary 'theta',
[tex]\vec{R}= L \cos \theta \hat{i} + L \sin \t... | {"url":"http://www.physicsforums.com/showthread.php?t=81449","timestamp":"2014-04-18T10:46:27Z","content_type":null,"content_length":"57235","record_id":"<urn:uuid:52d10872-bf9b-40bc-9832-7cecfb78a518>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00556-ip-10-147-4-33.ec2.internal.war... |
[SciPy-user] Inexact Newton methods in scipy
Pearu Peterson pearu at scipy.org
Fri Nov 12 06:40:31 CST 2004
On Fri, 12 Nov 2004, Nils Wagner wrote:
> Hi all,
> A standard method to solve nonlinear equations
> f(x) = 0
> is Newton's method. Given a suitable initial guess one iterates
> f'(x_k) \Delta x_k = -f(x_k)
> x_{... | {"url":"http://mail.scipy.org/pipermail/scipy-user/2004-November/003740.html","timestamp":"2014-04-16T04:40:38Z","content_type":null,"content_length":"3339","record_id":"<urn:uuid:13ae79c0-6075-4d8f-a632-dbcb3dbed128>","cc-path":"CC-MAIN-2014-15/segments/1397609521512.15/warc/CC-MAIN-20140416005201-00231-ip-10-147-4-33... |
[FOM] Transfinite Euclidean Algorithm
hendrik@topoi.pooq.com hendrik at topoi.pooq.com
Thu Nov 15 10:21:16 EST 2007
On Wed, Nov 14, 2007 at 09:47:02AM -0500, joeshipman at aol.com wrote:
> >-----Original Message-----
> >from: hendrik at topoi.pooq.com
> >> Commutative rings exist in which there is no Euclidean algorthm... | {"url":"http://www.cs.nyu.edu/pipermail/fom/2007-November/012291.html","timestamp":"2014-04-17T00:55:47Z","content_type":null,"content_length":"4008","record_id":"<urn:uuid:3441936d-7b63-4b26-8c9b-b91bdbede69b>","cc-path":"CC-MAIN-2014-15/segments/1397609526102.3/warc/CC-MAIN-20140416005206-00529-ip-10-147-4-33.ec2.int... |
I've had a lot of problems with students constantly talking in my Geometry class. I have 25 students and it's just not a good combination. I've tried lecturing and guilt tripping them about respect.
I've tried holding them late after class. My most recent strategy was to add a homework problem every time they get loud.... | {"url":"http://misscalculate.blogspot.com/2011_10_01_archive.html","timestamp":"2014-04-18T13:10:18Z","content_type":null,"content_length":"104047","record_id":"<urn:uuid:36ae6cb3-23b5-4ee0-bca2-8c51b51d0dcf>","cc-path":"CC-MAIN-2014-15/segments/1398223203235.2/warc/CC-MAIN-20140423032003-00091-ip-10-147-4-33.ec2.inter... |
Rex, GA Prealgebra Tutor
Find a Rex, GA Prealgebra Tutor
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MIT 6.189 First Week - Exercise OPT.2 β Secret Messages in Sec... | {"url":"http://openstudy.com/updates/51c3a1afe4b055e613b887d9","timestamp":"2014-04-20T21:14:56Z","content_type":null,"content_length":"44738","record_id":"<urn:uuid:988986c6-12a7-475f-a68a-aa836c3b226a>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-00046-ip-10-147-4-33.ec2.internal.... |
Jersey Vlg, TX Precalculus Tutor
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Markov Chain
March 19th 2009, 04:41 PM #1
Apr 2007
Markov Chain
Hi, I am having trouble with this problem:
There are two transmission lines from a generating station to a nearby city. Normally,
both are operating (βupβ). On any day on which line A is operating, there
is probability
p that it wil... | {"url":"http://mathhelpforum.com/advanced-statistics/79566-markov-chain.html","timestamp":"2014-04-18T11:42:27Z","content_type":null,"content_length":"38068","record_id":"<urn:uuid:54be9d6d-27c1-4873-9c5c-92496048c8d0>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00321-ip-10-147-4-3... |
Mill Creek, WA SAT Math Tutor
Find a Mill Creek, WA SAT Math Tutor
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have significant experience helping students write and ... | {"url":"http://www.purplemath.com/Mill_Creek_WA_SAT_math_tutors.php","timestamp":"2014-04-17T13:32:13Z","content_type":null,"content_length":"24054","record_id":"<urn:uuid:58c6d0b5-e69d-4b35-bac1-bf02c1ff1b16>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00014-ip-10-147-4-33.ec2.int... |
I Spy With My Little Eye: Math around us
Estimated reading time: 2 minutes, 39 seconds
As you know, this is the first week of Math Awareness Month. But what you may not have realized yet is that I am hosting a contest on the Math for Grownups Facebook page. Each day I give a Math
Treasure Hunt clue. The object is to no... | {"url":"http://www.mathforgrownups.com/i-spy-with-my-little-eye-math-around-us/","timestamp":"2014-04-21T07:05:38Z","content_type":null,"content_length":"59963","record_id":"<urn:uuid:5a549a73-1e4c-4b1f-811a-e2c49085d253>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00464-ip-10-147-... |
Cool Math Games
[cool math games ] [search_but]
Business Desktop Enhancements Drivers Games Home & Education HTML Info Management Internet MP3 and Audio Multimedia Programming Utilities
Quick Slide Show Online Desktop Presenter ThunderSite Free Web Editor Agama Web Menus WinX DVD Ripper Ultra Check Printing Softwar... | {"url":"http://www.bluechillies.com/software/cool-math-games.html","timestamp":"2014-04-17T13:08:34Z","content_type":null,"content_length":"60189","record_id":"<urn:uuid:d396e035-5c1b-488e-a7f9-d265dfc36721>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00242-ip-10-147-4-33.ec2.inter... |
Rayan Saab, Visiting Assistant Professor
Math @ Duke
Math HOME
Rayan Saab, Visiting Assistant Professor
Please note: Rayan has left the Mathematics department at Duke University; some info here might not be up to date.
Office Location: 242 Physics Bldg
Office Phone: (919) 660-2875
Email Address:
Web Page: ... | {"url":"http://fds.duke.edu/db/aas/math/faculty/rayans","timestamp":"2014-04-16T04:23:41Z","content_type":null,"content_length":"11227","record_id":"<urn:uuid:d5c48316-dd54-4316-ae08-4d9c8611d3db>","cc-path":"CC-MAIN-2014-15/segments/1397609521512.15/warc/CC-MAIN-20140416005201-00067-ip-10-147-4-33.ec2.internal.warc.gz... |
motor starting
Induction motor starting
The animation illustrates the across-the-line starting of an induction motor. The modeling assumes that the electrical transients can be ignored compared with the slow motional mechanical transients,
so that the motor can be represented at any speed Ο[m] by its steady-state torqu... | {"url":"http://www.ece.umn.edu/users/riaz/animate/im_starting.html","timestamp":"2014-04-17T00:48:51Z","content_type":null,"content_length":"7456","record_id":"<urn:uuid:95fbc192-3697-4fa9-8546-31d547c1d2ac>","cc-path":"CC-MAIN-2014-15/segments/1397609526102.3/warc/CC-MAIN-20140416005206-00100-ip-10-147-4-33.ec2.intern... |
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What are the solutions of x2 + 2x + 9 = 0?
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... | {"url":"http://openstudy.com/updates/4f0f20c2e4b04f0f8a9178be","timestamp":"2014-04-20T14:10:31Z","content_type":null,"content_length":"37301","record_id":"<urn:uuid:73387186-9ced-49f4-9d25-26f3f2769a54>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00514-ip-10-147-4-33.ec2.internal.... |
The ordered subsets mirror descent optimization method with applications to tomography
Results 1 - 10 of 27
, 2005
"... (after revision) In this paper we present a new approach for constructing subgradient schemes for different types of nonsmooth problems with convex structure. Our methods are primaldual since
they are... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=765307","timestamp":"2014-04-17T06:59:17Z","content_type":null,"content_length":"38688","record_id":"<urn:uuid:7a9d5725-f79b-46f5-82b8-70cd3f371ccb>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00347-ip-10-147-4-33.ec2.internal.war... |
Westminster, MA Trigonometry Tutor
Find a Westminster, MA Trigonometry Tutor
...I know all the mechanics of photography, setting light, exposure, speed, lenses and setting the aperture. I also have developed a sense for how to shoot. What angles work in photography and
how to capture the moment.
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Principles and standards for school mathematics
Principles and standards for school mathematics, Volume 1
National Council of Teachers of Mathematics
, 2000 -
402 pages
This volume updates the messages of NCTM's previous "Standards" and shows how students' learning should grow accross four grade bands: pre-K-2, 3-5, ... | {"url":"http://books.google.com/books?id=BkoqAQAAMAAJ&q=appropriate&dq=related:STANFORD36105110205569&source=gbs_word_cloud_r&cad=6","timestamp":"2014-04-17T07:14:34Z","content_type":null,"content_length":"117147","record_id":"<urn:uuid:6670ca08-a042-4df8-8733-b5576adfd776>","cc-path":"CC-MAIN-2014-15/segments/13976095... |
Allentown, PA Algebra Tutor
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Topological Superconductor?
We know how "hot" topological insulator is right now in condensed matter. Huge amount of publications are pouring out on this family of material. Well, it seems that in one type of topological
insulator, B12Se3, when doped with copper, it becomes what is claimed to be
a topological supercond... | {"url":"http://physicsandphysicists.blogspot.com/2010/11/topological-superconductor.html","timestamp":"2014-04-18T11:39:18Z","content_type":null,"content_length":"134880","record_id":"<urn:uuid:9fd50391-2155-4c91-a09d-07f8b6e74289>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00474-... |
Student Support Forum: 'Queries from Wolfram Alpha in Mathematica' topic
Author Comment/Response
I am using Wolfram Mathematica 8, and I have a question about Wolfram Alpha queries.
I would like to store the result of a Wolfram Alpha query in a variable for later use in my calculations. I am not gettin... | {"url":"http://forums.wolfram.com/student-support/topics/27211","timestamp":"2014-04-19T12:15:39Z","content_type":null,"content_length":"27161","record_id":"<urn:uuid:cde03ee7-13e5-4451-8c5f-cfded6652fd5>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00263-ip-10-147-4-33.ec2.internal... |
Hierarchical Clustering in Python
Continuing on the topic of clustering algorithms, here is another popular choice with a Python implementation. No need to copy paste, the all the code can be found
Hierarchical clustering is another simple but powerful clustering algorithm. The idea is to build a similarity tree based ... | {"url":"http://www.janeriksolem.net/2009/04/hierarchical-clustering-in-python.html","timestamp":"2014-04-20T08:39:47Z","content_type":null,"content_length":"116792","record_id":"<urn:uuid:6bf769f8-d66f-4729-a6e1-a33e4a2aaf63>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00615-ip-10-1... |
How many miles from Birmingham to Leeds?
You asked:
How many miles from Birmingham to Leeds?
Assuming you meant
β’ Birmingham, the city and metropolitan borough in the West Midlands county of England
Did you mean?
Say hello to Evi
Evi is our best selling mobile app that can answer questions about local knowledge, weat... | {"url":"http://www.evi.com/q/how_many_miles_from_birmingham_to_leeds","timestamp":"2014-04-18T13:23:09Z","content_type":null,"content_length":"55087","record_id":"<urn:uuid:a85cd9bf-c582-4aab-b42e-7eca22e7177c>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/CC-MAIN-20140416005213-00413-ip-10-147-4-33.ec2.in... |
Color coded table for easy interpretation
Table plots in The UnscramblerΕ½ X
The first part of the ANOVA table is a summary of the significance of the global model. If the p-value for the global model is smaller than 0.05, it means that the model explains more of the
variations of the response variable than could be exp... | {"url":"http://www.camo.com/resources/anova.html","timestamp":"2014-04-17T03:49:05Z","content_type":null,"content_length":"31330","record_id":"<urn:uuid:c4e11466-f151-410b-a57c-9ca9715ab4f2>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00362-ip-10-147-4-33.ec2.internal.warc.gz"} |
The Receptive Field LISSOM (RF-LISSOM) model
Next: Self-Organization Up: Self-Organization of Orientation Maps Previous: Introduction
Figure 1: The RF-LISSOM model. The lateral excitatory and lateral inhibitory connections of a single neuron in the network are shown, together with its afferent connections. The affe... | {"url":"http://www.cs.utexas.edu/users/nn/web-pubs/htmlbook96/sirosh/node2.html","timestamp":"2014-04-18T06:44:12Z","content_type":null,"content_length":"10130","record_id":"<urn:uuid:3c5c214e-e3a2-4ae9-a273-feb3d5871df6>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-20140416005212-00415-ip-10-147-... |
Fifth Grade Checklist
MINIMUM CRITERIA FOR FIFTH GRADE PROMOTION TO SIXTH GRADE AT ECCLESTON ELEMENTARY SCHOOL
The studentβ¦
β’ scores above level 1 in reading on the FCAT
β’ attains or surpasses DRP level 4 or 5
β’ demonstrates 1 year academic growth as assessed... | {"url":"https://ocps.net/lc/southwest/eec/AC/fifthgrade/Pages/FifthGradeChecklist.aspx","timestamp":"2014-04-16T16:58:25Z","content_type":null,"content_length":"53062","record_id":"<urn:uuid:5c9ad781-6afd-436c-8d75-8646fac0df34>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN-20140416005204-00605-ip-... |