Many observers have noted that the United States Senate has become increasingly partisan in recent years. Votes are being made more frequently along strict political party lines. The singular value decomposition, the SVD, of matrices derived from records of roll call votes in the senate can measure this partisanship.... 続きを読む >>
Alexa tells me that the definition of serendipity is "the occurrence and development of events by chance in a happy or beneficial way."... 続きを読む >>
"A History of MATLAB", a 67-page paper that Jack Little and I have written, has been published by the ACM, the Association for Computing Machinery, in the Proceedings of the ACM on Programming Languages, volume 4, June 2020.... 続きを読む >>
It has been a while since I made a blog post. It is because I am preparing to give a talk next week on"The Evolution of the Evolution of MATLAB"on E-NLA, the Online seminar series on Numerical... 続きを読む >>
John Horton ConwayFrom the New York Times, April 15, 2020John Horton Conway, a ‘Magical Genius’ in Math, Dies at... 続きを読む >>
I have completely rewritten the COVID-19 simulator that I described in last week's blog post and I now have a second version.... 続きを読む >>
ContentsSimulatorAnimationFirst frameFinal frameFull barrierNo barrierLarger populationSmaller populationSoftwareSimulator help covid19 Epidemic simulation. Inspired by Washington Post... 続きを読む >>
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.... 続きを読む >>
Tomorrow, February 29, 2020 would be Gene Golub's 22nd birthday.... 続きを読む >>
I have learned a lot more about Kuramoto oscillators since I wrote my blog post three weeks ago. I am working with Indika Rajapakse at the University of Michigan and Stephen Smale at the University of California, Berkeley. They are interested in the Kuramoto model because they are studying the beating of human heart cells. At this point we have some interesting results and some unanswered questions.... 続きを読む >>