Publié le
Pentium Division Bug Revisited
The Pentium division bug episode in the fall of 1994 was a defining moment for the MathWorks, for the Internet, for Intel...
environ 13 ans il y a
Publié le
Wilkinson’s Matrices
One of Jim Wilkinson's outstanding skills was his ability to pick great examples. A previous post featured his signature...
plus de 13 ans il y a
Publié le
Quantum Matrix Processor
The Quantum Matrix Processor, being announced today, is the world's first viable quantum array processor. Basic matrix...
plus de 13 ans il y a
Publié le
Easter
Easter Sunday is March 31 this year. Why? How is the date of Easter determined? ...
plus de 13 ans il y a
Publié le
Wilkinson’s Polynomials
Wilkinson's polynomials are a family of polynmials with deceptively sensitive roots....
plus de 13 ans il y a
Publié le
Jim Wilkinson
I have already made several posts about gatlin, the image distributed with MATLAB of the organizing committee for the...
plus de 13 ans il y a
Publié le
Hilbert Matrices
The inverse Hilbert matrix, invhilb, has recently made surprise appearances in Cody, the programming game on MATLAB Central,...
plus de 13 ans il y a
A résolu
Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...
plus de 13 ans il y a
A résolu
Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...
plus de 13 ans il y a
A résolu
Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...
plus de 13 ans il y a
A résolu
Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...
plus de 13 ans il y a
Publié le
Reduced Penultimate Remainder
I investigated the reduced penultimate remainder algorithm in an undergraduate research project under professor John Todd at...
plus de 13 ans il y a
Publié le
George Forsythe
Tuesday, January 8, 2013, would have been George Forsythe's 96th birthday. He passed away in 1972 at the age of 55. A...
plus de 13 ans il y a
Publié le
Season’s Greetings
Season's Greetings help greetings % greetings Seasonal holiday fractal. % greetings(phi) generates a seasonal...
plus de 13 ans il y a
Publié le
Post About 1976 SVD Film Is Available
h1 { font-size:18pt; } h2.titlebg { font-size:13pt; } h3 { color:#4A4F55; padding:0px; margin:5px 0px 5px;...
plus de 13 ans il y a
Publié le
1976 Matrix Singular Value Decomposition Film
This blog is about a film that I made in 1976. Here is the link to a digital copy on YouTube:...
plus de 13 ans il y a
Publié le
Magic Squares Meet Supercomputing
I have just returned from the huge Supercomputing 2012 conference in Salt Lake City. I can report on interesting reactions...
plus de 13 ans il y a
Publié le
Magic Squares, Part 3, Linear Algebra
We know a little bit, but not much, about the linear algebraic properties of magic squares. ...
plus de 13 ans il y a
Publié le
Magic Squares, Part 1, Low Order
With origins in centuries old recreational mathematics, magic squares demonstrate MATLAB array operations. ... read more...
plus de 13 ans il y a
Publié le
China Trip Report
I have just completed a wonderful trip, a two-week lecture tour of eight universities in five cities in China. I was...
presque 14 ans il y a
Publié le
CHEBFUN, Snake
Chebfun revives a classic video game, with a few mathematical twists (literally)...
presque 14 ans il y a
Publié le
CHEBFUN, Roots
The ROOTS function in Chebfun is one of its most powerful features. This is the second part of my series on Chebfun. Part...
presque 14 ans il y a
Publié le
CHEBFUN, Numerical Computing With Functions
I recently attended "Chebfun and Beyond", a three-day workshop in Oxford, England. Chebfun is a mathematical research and...
presque 14 ans il y a
Publié le
Game of Life, Part 3, Sampler
The Game of Life. A few more of my favorite populations....
presque 14 ans il y a
Publié le
Game of Life, Part 2, Sparse Matrices
The Game of Life, including the infinitely expanding universe, is a gorgeous application of MATLAB sparse matrices.... read...
presque 14 ans il y a
Publié le
Game of Life, Part 1, The Rule
This is part one of a series of posts about John Conway's Game of Life. One deceptively simple rule leads to an incredible...
presque 14 ans il y a
Publié le
MATLAB Debut and the Potted Palm
The first MATLAB trade show booth at the CDC in December, 1984, included a potted palm....
presque 14 ans il y a
Publié le
Can One Hear the Shape of a Drum? Part 3, Transplantation.
This is the third part of a series of posts about Marc Kac's 1966 paper in the American Mathematical Monthly [1]. This part...
presque 14 ans il y a
