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DataGenetics
algorithms games math statistics
7 weeks ago by jtth

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R:Installing and Using R and Rcmdr on a MAC - MathWiki
math
february 2012 by jtth

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Pronunciation Guide for Mathematics
math mathematics linguistics
may 2010 by jtth

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l1-Magic

One of the central tenets of signal processing is the Shannon/Nyquist sampling theory: the number of samples needed to capture a signal is dictated by its bandwidth. Very recently, an alternative theory of "compressive sampling"has emerged. By using nonlinear recovery algorithms (based on convex optimization), super-resolved signals and images can be reconstructed from what appears to be highly incomplete data. Compressive sampling shows us how data compression can be implicitly incorporated into the data acquisition process, a gives us a new vantage point for a diverse set of applications including accelerated tomographic imaging, analog-to-digital conversion, and digital photography.

math image algorithms
april 2010 by jtth

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How Not To Sort By Average Rating
algorithms math programming statistics
march 2010 by jtth

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Fibonacci Flim-Flam.
analysis math science
february 2010 by jtth

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Pin Dancing: Learning about Machine Learning
books learning machinelearning math ml
january 2010 by jtth

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Measuring Measures: Learning About Statistical Learning

I get a lot of inbound requests for book recommendations from people who want to either get into research, or better understand it so they can build high quality supporting systems for research and analytics. The typical desire is participate in some form of what statisticians call inference, or what machine learning people call learning (the two are more or less the same).

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january 2010 by jtth

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Programmers Need To Learn Statistics Or I Will Kill Them All

I have a major pet peeve that I need to confess. I go insane when I hear programmers talking about statistics like they know shit when it’s clearly obvious they do not. I’ve been studying it for years and years and still don’t think I know anything. This article is my call for all programmers to finally learn enough about statistics to at least know they don’t know shit. I have no idea why, but their confidence in their lacking knowledge is only surpassed by their lack of confidence in their personal appearance.

programming math statistics
january 2010 by jtth

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Khan Academy

The Khan Academy is a not-for-profit organization with the mission of providing a high quality education to anyone, anywhere.
We have 1000+ videos on YouTube covering everything from basic arithmetic and algebra to differential equations, physics, chemistry, biology and finance which have been recorded by Salman Khan.

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january 2010 by jtth

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Math Overflow

A place for mathematicians to ask and answer questions

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december 2009 by jtth

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The R programming language for programmers coming from other programming languages

I have written software professionally in perhaps a dozen programming languages, and the hardest language for me to learn has been R. The language is actually fairly simple, but it is unconventional. These notes are intended to make the language easier to learn for someone used to more commonly used languages such as C++, Java, Perl, etc.

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august 2009 by jtth

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PopCosmo – Index « GLS Group Worked Examples

caro does it with math and WoW!

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july 2009 by jtth

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Mathematics Goes To the Movies

This page complements our book with the same title, which will be published by Springer Verlag. Below is a list of titles and short descriptions of over 400 movies and TV episodes that contain mathematics. Over time, more titles will be added. And, more titles will be hyperlinked to individual pages containing more comprehensive detail; included are the approximate times where the dialogue occurs (though these times may differ in other releases).

math movies
july 2009 by jtth

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wolfram alpha
search wolfram math research science searchengine keyword algorithm shortcut:a
june 2009 by jtth

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Statistics - Wikibooks, collection of open-content textbooks
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may 2009 by jtth

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Probability and statistics - Wikiversity
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may 2009 by jtth

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PLoS ONE: The e-Index, Complementing the h-Index for Excess Citations
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may 2009 by jtth

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Linear Algebra textbook home page

The text Linear Algebra is free for downloading, It covers the material of a first undergraduate Linear Algebra course. You can use it either as a main text, as a supplement to another text, or for independent study.

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may 2009 by jtth

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Wolfram Blog : Droste Effect with Mathematica

Take a look at this Demonstration using the original Droste box artwork. But much more interesting results can be achieved when you get complex analysis involved. M.C. Escher was the first to popularize applying conformal mapping to images, but with computers we can easily apply the same ideas to photographs, to get results like this:

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april 2009 by jtth

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Backpropagation

The project describes teaching process of multi-layer neural network employing backpropagation algorithm. To illustrate this process the three layer neural network with two inputs and one output,which is shown in the picture below, is used:

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december 2008 by jtth

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NumberSpiral.com - Home

Really cool number spiral play.

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december 2008 by jtth

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Euler problems - HaskellWiki
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november 2008 by jtth

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Peter Suber, "Glossary of First-Order Logic"
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october 2008 by jtth

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10 Easy Arithmetic Tricks - The List Universe

Math can be terrifying for many people. This list will hopefully improve your general knowledge of mathematical tricks and your speed when you need to do math in your head.

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september 2008 by jtth

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PARI/GP Development Headquarters

PARI/GP is a widely used computer algebra system designed for fast computations in number theory (factorizations, algebraic number theory, elliptic curves...), but also contains a large number of other useful functions to compute with mathematical entities such as matrices, polynomials, power series, algebraic numbers etc., and a lot of transcendental functions. PARI is also available as a C library to allow for faster computations.

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august 2008 by jtth

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Figures for "Impossible fractals"
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august 2008 by jtth

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UPDATED: 10 Must-Have Python Packages for Social Scientists <> Zero Intelligence Agents
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july 2008 by jtth

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Several Proofs of the Twin Primes Conjecture

Proof of Goldbach's Conjecture, the Prime Number Theorem, and Euclid's Logic Provide Proofs of the Twin Primes Conjecture. Proof of the Twin Primes Conjecture Provides Proof of Goldbach's Conjecture

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july 2008 by jtth

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The Coq proof assistant
computer_science sc math mathematics proof program language
may 2008 by jtth

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ProVocGraphClick - Graph and Movie Digitizer for Mac OS X - Free Download

GraphClick is a graph digitizer software which allows to automatically retrieve the original (x,y)-data from the image of a scanned graph or from a QuickTime movie. (linked via http://www.arizona-software.ch/graphclick/download.html)

graph data application macosx math
may 2008 by jtth

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What Every Computer Scientist Should Know About Floating-Point Arithmetic

This paper presents a tutorial on those aspects of floating-point that have a direct impact on designers of computer systems. It begins with background on floating-point representation and rounding error, continues with a discussion of the IEEE floating-p

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april 2008 by jtth

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Psychonomic Society Publications

The Psychonomic Society promotes the communication of scientific research in psychology and allied sciences. Its members are qualified to conduct and supervise scientific research, must hold the PhD degree or equivalent, and must have published significan

association career formal journal science society work training psychology psychonomics psychophysics data math Research Psychonomic Publications
april 2008 by jtth

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UMFPACK: unsymmetric multifrontal sparse LU factorization package

UMFPACK is a set of routines for solving unsymmetric sparse linear systems, Ax=b, using the Unsymmetric MultiFrontal method. Written in ANSI/ISO C, with a MATLAB (Version 6.0 and later) interface. Appears as a built-in routine (for lu, backslash, and forw

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march 2008 by jtth

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The Frontal Cortex : Algebra Education and John Dewey

If the teaching was done right, the children wouldn't even realize they were being taught.

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march 2008 by jtth

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Trichechus » Downloads

Mac OS X installers for several important scientific computing tools, using recent builds from the most recent development code. I will attempt to make these weekly or bi-monthly builds, where appropriate. (linked via http://trichech.us/?page_id=5)

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march 2008 by jtth

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Memories of John W. Tukey

This web site is dedicated to gathering recollections and reflections on John Tukey from those who knew him and from those who would like to comment on his life or work.

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february 2008 by jtth

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Scythe Statistical Library
Statistics programming c++ software Math libraries computing machine-learning library mathematics numerical scientific
february 2008 by jtth

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Tetrad Project Homepage
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february 2008 by jtth

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Main Page - Emergent

Emergent (a major rewrite of PDP++) is a comprehensive simulation environment for creating complex, sophisticated models of the brain and cognitive processes using neural network models. These same networks can also be used for all kinds of other more pra

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february 2008 by jtth

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Java Applets for Visualization of Statistical Concepts
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february 2008 by jtth

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Simulations
Statistics simulations tutorial Teaching stats java Resources tutorials tools Psychology math interactive free
february 2008 by jtth

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Matlab/Octave Tutorial
free math mathematics reference matlab tutorial octave
february 2008 by jtth

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Tutorial - sympy - Google Code
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january 2008 by jtth

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Boltzmann's Universe | Cosmic Variance
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january 2008 by jtth

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SAGE: Open Source Mathematics Software

"Building the Car Instead of Reinventing the Wheel"

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december 2007 by jtth

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Sparkline PHP Graphing Library

Sparklines are "intense, simple, wordlike graphics" so named by Edward Tufte. In lieu of a more detailed introduction, Professor Tufte's site has an early release of a chapter on sparklines.

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december 2007 by jtth

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Chronology of Events in Science, Mathematics, and Technology
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december 2007 by jtth

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Software Integrity Checksum and Code Signing Vulnerability

How to spoof MD5 checksums on applications.

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december 2007 by jtth

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Create A Graph

?Graphs and charts are great because they communicate information visually. For this reason, graphs are often used in newspapers, magazines and businesses around the world. NCES constantly uses graphs and charts in our publications and on the web. Sometim

math graphs graph Tools Education interactive graphing wizard visualization
december 2007 by jtth

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InfoVis CyberInfrastructure- Software

This page provides pointers to commonly used data analysis and visualization algorithms. An 'IVC Software Framework' was implemented to facilitate the easy integration of diverse software packages and their menu driven usage. Many software packages are av

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october 2007 by jtth

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Why There Are 24 Hours in a Day
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october 2007 by jtth

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The Science of Knots Unraveled | LiveScience

Two physicists used string-tumbling experiments and mathematical models to create a step-by-step recipe for knot formation and determined which factors cause the knottiest knots. Their research, published online this week by the Proceedings of the Nationa

science knot knots math string strings research
october 2007 by jtth

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[ wu :: riddles(intro) ]

WELCOME to [wu:riddles]! This is an archive of problems I've been collecting since the Spring of 2002. They come from many places, including word of mouth, college courses, books, and job interviews for hi-tech positions. Many are even written by members

puzzles riddles logic math games fun puzzle technical resources mind problem problems language library lists gallery enigma computing algorithms brain Geek reference mathematics
september 2007 by jtth

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SciPy -

SciPy (pronounced "Sigh Pie") is open-source software for mathematics, science, and engineering. It is also the name of a very popular conference on scientific programming with Python.

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september 2007 by jtth

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NPR: A Four-Dimensional Tribute to the Late Madeleine L'Engle

An actual tesseract is best described as a four dimensional cube...and is kind of confusing. So, in memory of L'Engle, we met up with Physicist David Morgan who took a little time out of his day to talk tesseracts with the BPP. Put your measley three-dime

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september 2007 by jtth

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R: Statistical Software for Psychology Research

Doing psychology research in R. Insane amount of material here. Insane.

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september 2007 by jtth

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Statistical Computing with R: A tutorial

Another wicked R tutorial.

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september 2007 by jtth

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R Tutorial

Union College Dept. Of Math tutorial of R.

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september 2007 by jtth

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Best Free Documentaries: Dangerous Knowledge - Full Documentary

In this one-off documentary, David Malone looks at four brilliant mathematicians - Georg Cantor, Ludwig Boltzmann, Kurt Gödel and Alan ... all » Turing - whose genius has profoundly affected us, but which tragically drove them insane and eventually led

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september 2007 by jtth

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Society for Mathematical Pychology
mathematical math maths mathematics psychology society
august 2007 by jtth

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Lambda abstractions in C++ vs. Scheme
scheme c++ pogramming lambda calculus math cs computer science computerscience lisp recursion
august 2007 by jtth

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Indians predated Newton 'discovery' by 250 years

He added: "For some unfathomable reasons, the standard of evidence required to claim transmission of knowledge from East to West is greater than the standard of evidence required to knowledge from West to East.