Linocuts by Henk van der Vorst.... read more >>

My first blog about SVD and Partisanship in the U. S. Senate was five years ago. Today's post updates that to 2025.... read more >>

Jack Dongarra is my student, colleague and friend.... read more >>

I was invited recently to give a virtual talk to the student chapter of SIAM at JUIT, the Jaycee Institute of Information Technology, in Wagnaghat, India.... read more >>

The twenty-second Householder Symposium on Numerical Linear Algebra was held June 8 - June 13 at Cornell. The local organizers were Anil Damle, Alex Townsend and David Bindel. Anil served as host and cheerleader.... read more >>

Two previous blog posts, Dec. 12, 2024 and Nov. 16, 2024, introduced "Sonic", my new tool for incorporating sound in videos. Today's blog post includes a link to the MATLAB source code for Sonic, as well as links to new versions of ten examples.... read more >>

I am very excited to incorporate sound in animations. This blog post has five examples with links to videos enclosed in '+ + + +'.... read more >>

Shortly after I published the second post about the Mertens conjecture, a reader's comment suggested a new approach to computing Redheffer determinants and the Mertens function. It is now possible to compute a half-million values of the Mertens function in about five hours.... read more >>

Special Notice If you have been following my posts about Wordle, be sure to see the puzzle in today's New York Times, Tuesday, April 4.Get the MATLAB code (requires JavaScript) ... read more >>

This year, 2023, is the 50-th anniversary of the QZ algorithm for generalized matrix eignenvalue problems,... read more >>