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Posts 11 - 20 of 50

Results for: Algorithms

Complexity of Computing the Eigenvalues of a Symmetric Matrix 1

I am giving a five-minute talk today, May 26, at the virtual seminar on Complexity of Matrix Computations. Here are my slides. Two new MATLAB functions, tred and imtql, instrumented to count flops, are available in symeig.m.... read more >>

Easter Sunday and April Fools 4

What do the years 2018, 2029 and 2040 have in common? They are the only years in the 21st century when Easter Sunday occurs on April Fools Day.... read more >>

Two Dubious Ways to Solve A*X = X*B, part 1 2

Recently, I had email from a student in Italy.... read more >>

Makima Piecewise Cubic Interpolation

This post is by my colleague Cosmin Ionita.... read more >>

MathWorks Math Modeling Challenge

This week’s post is by Reece Teramoto.
MathWorks recently took over sponsorship of the Math Modeling Challenge, a contest for high school juniors and seniors in the U.S organized by SIAM – Society... read more >>

USA Traveling Salesman Tour 4

Find the optimum traveling salesman tour through the capitals of the 48 contiguous states in the USA.... read more >>

Easter, Revisited

Today is Easter Sunday. Why? How is the date of Easter determined?... read more >>

Three-Term Recurrence Relations and Bessel Functions

Three-term recurrence relations are the basis for computing Bessel functions. Contents A Familiar Three-Term Recurrence Friedrich Bessel Bessel Functions Miller's Algorithm ... read more >>

Morse Code, Binary Trees and Graphs 6

A binary tree is an elegant way to represent and process Morse code. The new MATLAB graph object provides an elegant way to manipulate binary trees. A new app, morse_tree, based on this approach, is now available in version 2.40 of Cleve's Laboratory.... read more >>

Patience Chinese Rings Puzzle

MIT's Professor Daniel Frey recently introduced me to an ancient mechanical puzzle known as "Chinese Rings", "Patience", or "Baguenaudier." I have modified Daniel's simulator to produce a new app. The state space of the puzzle forms a hypercube.... read more >>

Posts 11 - 20 of 50