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Each entry here begins with a parent link followed by some child links that I've found particularly useful to mention. The order these links are sorted upon reflects, solely, the frequency of my personal reference to them.

People

Gilbert Strang-MIT (Applied Math) (Incredible video lectures on LA, MME I, and II. My brother, a soon-to-be mathematician, calls him the god of Linear Algebra. "...see what the god has created!" he says on his correspondence with me about Strang's Calculus book generously put up on OCW.)
 
Michael D. Greenberg-Delware (Mech Eng.) (One of the best writers ever in engineering mathematics)
 
 
Tim Davis-Florida (UMFPack) (Direct Methods for Sparse Linear Systems: The MATLAB sparse backslash video, 41MB or 589MB version)
 
 
 
 
Nick Higham-Manchester (ASNA) (Be sure to go through his page; lots of stuff and useful links...)
 
Jonathan Richard Shewchuk-Berkeley (Triangle) (Triangular mesh generator; be sure to check out his site, loads of cool stuff)
 
Per-Olof Persson-MIT (DistMesh) (High-order methods for fluid and solid mechanics, in particular techniques based on the Discontinuous Galerkin method--he was under Gil Strang and Alan Edelman in his PhD.)
 
Steven G. Johnson (FFTW) (MATLAB's FFT is based on his and Matteo Frigo's FFTW. A genius with four BS's before his PhD, all from MIT where he's a now professor.)
 

 

Michele Benzi

Robert J. Vanderbei-Princeton

Don Knuth-Stanford (/ka-nooth'/ Donald E. Knuth's "The Art of Computer Programming"] is mythically, the reference that answers all questions about data structures or algorithms. A safe answer when you do not know: "I think you can find that in Knuth."

Alan Edelman-MIT (Parallel Computing)

William Kahan-Berkeley

Alan Turing (Founder of computer science...)

Daolin Xu (My Advisor)

Me at TICalc (I used to write a lot of programs in TIBasic; here is three of them that I posted on the web back in my undergrad)

Ehssan, my borther, at AoSP (This links to his blog at the Art of Problem Solving where he writes on abstract math)

Jim Herod-Georgia Tech (Math) (His and Cain's textbook for a course in multivariable calculus. It has been used for the past few years here at Georgia Tech)
 
George Cain-Georgia Tech (Math) (See his list of Online Mathematics Textbooks some of which I've extracted and written in books section below.)
 
Robert J. Vanderbei-Princeton
 
Siegfried M. Rump-Hamburg (IntLab)
 
Kleitman-MIT (Calculus) (Check out his Calculus for Beginners course material as well as other courses directly available on his page)
 
Herbert Wilf-UofPennsylvania (His math books are, generously, available to download freely)
 
Pavel Grinfeld-Drexel (Formerly a student of Gil Strang. Check out his Overview of Numerical Methods With Matlab flash recorded course)
 
James Demmel-Berkeley (One of the main authors of LAPack and scaLAPack upon which MATLAB's linear algebra is based)

Math Software

Netlib (Netlib repository contains freely available software, documents, and databases of interest to the numerical, scientific computing, and other communities. The repository is maintained by AT&T Bell Laboratories, the University of Tennessee and Oak Ridge National Laboratory, and by colleagues world-wide. The collection is replicated at several sites around the world, automatically synchronized, to provide reliable and network efficient service to the global community.)
 
EigTool (EigTool is a GUI that integrates MATLAB's eig routine (ARPACK) for finding a few eigenvalues of a large sparse matrix with the (now obsolete) Pseudospectra GUI for computing pseudospectra of matrices--By Tom Wright.)
DistMesh (DistMesh is a simple MATLAB code for generation of unstructured triangular and tetrahedral meshes. It was developed by Per-Olof Persson and Gilbert Strang in the Department of Mathematics at MIT.)

 

UMFPACK (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 forward slash) in MATLAB. Includes a MATLAB interface, a C-callable interface, and a Fortran-callable interface. Note that "UMFPACK" is pronounced in two syllables, "Umph Pack". It is not "You Em Ef Pack".)
 
Triangle-A Two-Dimensional Quality Mesh Generator and Delaunay Triangulator (Winner of the 2003 James Hardy Wilkinson Prize in Numerical Software, Triangle generates exact Delaunay triangulations, constrained Delaunay triangulations, conforming Delaunay triangulations, Voronoi diagrams, and high-quality triangular meshes. The latter can be generated with no small or large angles, and are thus suitable for finite element analysis.)
 
INTLAB-INTerval LABoratory (I'm most of the times experiencing difficulties in reaching this site; I hope you won't)
 
FFTW (Winner of the 1999 James Hardy Wilkinson Prize in Numerical Software, FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions, of arbitrary input size, and of both real and complex data (as well as of even/odd data, i.e. the discrete cosine/sine transforms or DCT/DST. Be sure to check out its exhaustive FFT links)
 
Cilk (Cilk project asymptotically optimal algorithms for rectangular matrix transpose, FFT, and sorting on computers with multiple levels of caching. Unlike previous optimal algorithms, these algorithms are cache oblivious: no variables dependent on hardware parameters, such as cache size and cache-line length, need to be tuned to achieve optimality. Nevertheless, these algorithms use an optimal amount of work and move data optimally among multiple levels of cache.)

Books and Knowledge Bases

 
Numerical Recipes in C (Press et al...a classic)
HyperPhysics (HyperPhysics is an exploration environment for concepts in physics which employs concept maps and other linking strategies to facilitate smooth navigation. For the most part, it is laid out in small segments or "cards", true to its original development in HyperCard. The entire environment is interconnected with thousands of links, reminiscent of a neural network. The bottom bar of each card contains links to major concept maps for divisions of physics...)
 
Templates for the Solution of Algebraic Eigenvalue Problems (Edited by Zhaojun Bai, James Demmel, Jack Dongarra, Axel Ruhe, and Henk van der Vorst, This book is a guide to the numerical solution of eigenvalue problems. It attempts to present the many available methods in an organized fashion, to make it easier for you to identify the most promising methods.)
 
PC Technology Guide (When the PCTechGuide was launched in April 1998, its purpose was to share a dossier of technical information compiled whilst researching the purchase of a home PC. Since then the site has grown considerably, and is now a widely used educational resource. Visited by IT students, hobbyists and professionals worldwide, the site is the number one ranked PC Technology site on the web.)

MIT OpenCourseWare (OCW) (Lecture notes, assignments, exams and sometime even the video lectures of most courses offered at MIT. Don't miss the Audio and Video on MIT OCW or their Supplementary Resources.)

Wikipedia (The Free Encyclopedia that anyone can edit)

HowStuffWorks (Learn how Everything Works!)

Mathematics WWW Virtual Library (Florida State University's fantastic online source of lots of e-books with links to a zillion more)

Linear Methods of Applied Mathematics (This is a WWW textbook written by Evans M. Harrell II and James V. Herod, both of Georgia Tech. It is suitable for a first course on partial differential equations, Fourier series and special functions, and integral equations.)

American Mathematical Society Online Books (where there are links to all kinds of mathematics books and lists of mathematical books. Specially check out Dynamical Systems by George D. Birkhoff.)

Misc

TICalc (The most comprehensive resource for TI Calculator programs, in Basic, Asm, or C, as well as lots of tutorials)

Astronomy Picture of the Day (Each day a different image or photograph of our fascinating universe is featured [by NASA], along with a brief explanation written by a professional astronomer)

The MathWorks-Newsletters
 
Math Quotes
 
Internet Fractal Database (At the time I'm writing this, it has 93 galleries)
 
The Chronicles of Sir Arthur Conan Doyle - Quotes
 
Alexa Site Traffic Rankings
 
NOVA
 
Visual Numerics

Groups and Societies

 

Center for Applied Mathematics, Cornell University

 

Publishers and Bookshops

Wellesley Cambridge Press (Founded by GS to publish what he writes, the way he writes, no revisions!)
 
 
 

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