Posts 81 - 90 of 306

Web Fake News Simulator

... read more >>

Second Version of a COVID-19 Simulator 2

I have completely rewritten the COVID-19 simulator that I described in last week's blog post and I now have a second version.... read more >>

COVID-19 Simulator 1

ContentsSimulatorAnimationFirst frameFinal frameFull barrierNo barrierLarger populationSmaller populationSoftwareSimulator help covid19 Epidemic simulation. Inspired by Washington Post... read more >>

It is Friday the 13th Again 4

Today is Friday, March 13, 2020. In many parts of the world, Friday the 13th is considered unlucky. I've written blog posts about Friday the 13th before, 2012, 2018, but I will have something new to say today.... read more >>

Gene Golub’s 22nd Birthday 1

Tomorrow, February 29, 2020 would be Gene Golub's 22nd birthday.... read more >>

Roundoff Patterns from Triple Kronecker Products

While I was working on my posts about Pejorative Manifolds, I was pleased to discover the intriguing patterns created by the roundoff error in the computed eigenvalues of triple Kronecker products.... read more >>

Pejorative Manifolds of Polynomials and Matrices, part 2

In an unpublished 1972 technical report "Conserving confluence curbs ill-condition," Velvel Kahan coined the descriptive term pejorative manifold. In case you don't use it in everyday conversation, pejorative means "expressing contempt or disapproval."... read more >>

Pejorative Manifolds of Polynomials and Matrices, part 1 2

In an unpublished 1972 technical report "Conserving confluence curbs ill-condition," Velvel Kahan coined the descriptive term pejorative manifold. In case you don't use it in everyday conversation, pejorative means "expressing contempt or disapproval."... read more >>

MathWorks Blue Meets Air Force Academy Blue 4

I have always been fascinated by the names that are used to describe colors. There are dozens of web sites with lists of color names. I was surprised to discover that the shade of blue we use in MathWorks logo is almost the same as the one used by the United States Air Force Academy.... read more >>

Posts 81 - 90 of 306

These postings are the author's and don't necessarily represent the opinions of MathWorks.