The Bucky Ball provides an elegant example of a graph, the connectivity of the Buckminster Fuller geodesic dome.We are also demonstrating publishing this blog with the Live Editor. There is a button...read more >>

This is about linear systems with fewer equations than variables;A*x = bwhere them-by-nmatrixAhas fewer rows that columns, som < n. I have always called such systemswideorfat, but this is not respectful. So I consulted the Merriam-Webster Thesaurus and foundcommodious....read more >>

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 >>

A news story released yesterday, March 31,by c|nethas the headline...read more >>

What do Mount St. Helens and the rank of a matrix have in common? The answer is the MATLAB functionpeaks. Let me explain. Please bear with me -- it's a long story....read more >>

I recently publishedRound, With Ties to Evenand followed that withRound Two. Then, in an email, Andy Bartlett pointed out that my newroundfunction fails for some large values ofxbetweenflintmax/2andflintmax....read more >>

I publishedRound, With Ties to Evena couple of days ago. Steve Eddins and Daniel Dolan immediately had substantive comments. Here is my reaction to their comments....read more >>

We are considering a MATLAB Enhancement Request to support options forround(x)whenxis exactly halfway between two integers....read more >>

The rank of a linear transformation is a fundamental concept in linear algebra and matrix factorizations are fundamental concepts in numerical linear algebra. Gil Strang's2020 Vision of Linear Algebraseeks to introduce these notions early in an introductory linear algebra course....read more >>

I want to share some colorful images featuring the seven colors in the MATLAB axes color order....read more >>