Published
“Odd Rock” on Mars Exhibits (Almost) Magic Square
A news story released yesterday, March 31,by c|net has the headline...
ungefär 3 år ago
Published
Mount St. Helens and Matrix Rank
What do Mount St. Helens and the rank of a matrix have in common? The answer is the MATLAB function peaks. Let me explain....
ungefär 3 år ago
Published
Round, With Tie Breakers, Round Three
I recently published Round, With Ties to Even and followed that with Round Two. Then, in an email, Andy Bartlett pointed...
ungefär 3 år ago
Published
Round, With Tie Breakers, Round Two
I published Round, With Ties to Even a couple of days ago. Steve Eddins and Daniel Dolan immediately had substantive...
ungefär 3 år ago
Published
Round, With Ties to Even
We are considering a MATLAB Enhancement Request to support options for round(x) when x is exactly halfway between two...
ungefär 3 år ago
Published
CR and CAB, Rank Revealing Matrix Factorizations
The rank of a linear transformation is a fundamental concept in linear algebra and matrix factorizations are fundamental...
mer än 3 år ago
Published
Holiday Greetings 2020
I want to share some colorful images featuring the seven colors in the MATLAB axes color order....
mer än 3 år ago
Published
A Famous Equation, x^2 = 2^x
A recent episode of the popular YouTube channel "blackpenredpen" is about solutions to the famous equation... read more...
mer än 3 år ago
Published
Paul Saylor, 1939-2020
My friend Paul Saylor passed away on November 7th....
mer än 3 år ago
Published
Anticipating Official U.S. Census for 2020
On October 13, the U.S. Supreme Court ruled that the U.S. Census Bureau could stop the 2020 census early. Here is a link to...
mer än 3 år ago
Published
Notes on CR and west0479
My post a few days ago, Gil Strang and the CR Matrix Factorization, generated a lot of email. Here is the resulting...
mer än 3 år ago
Published
Gil Strang and the CR Matrix Factorization
My friend Gil Strang is known for his lectures from MIT course 18.06, Linear Algebra, which are available on MIT...
mer än 3 år ago
Published
Two Dubious Ways to Solve A*X = X*B, part 1
Recently, I had email from a student in Italy....
mer än 3 år ago
Published
Addition to SVD and Partisanship in the U. S. Senate
I have added this section to my post a few weeks ago about using the SVD to measure partisanship in the United States...
mer än 3 år ago
Published
SVD Quantifies Increasing Partisanship in the U. S. Senate
Many observers have noted that the United States Senate has become increasingly partisan in recent years. Votes are being...
mer än 3 år ago
Published
Collatz Inequality and Singleton Expansion
I've blogged about this gem from Lothar Collatz (1910-1990) before, but it deserves to be repeated. Especially since it now...
mer än 3 år ago
Published
Serendipity, Kuramoto, Colleagues and Backslash
Alexa tells me that the definition of serendipity is "the occurrence and development of events by chance in a happy or...
mer än 3 år ago
Published
A Mesmerizing Animation
A Mesmerizing AnimationWe are working on a paper about the Kuramoto model of self-synchronizing oscillators. This animation...
nästan 4 år ago
Published
History of MATLAB Published by the ACM
"A History of MATLAB", a 67-page paper that Jack Little and I have written, has been published by the ACM, the Association...
nästan 4 år ago
Published
Moler on E-NLA, Wednesday, May 27
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...
nästan 4 år ago
Published
Precise Setting of a Delicate Parameter with “pibar”
(A slight revision of the post I made a few hours ago.)...
nästan 4 år ago
Published
John Horton Conway
John Horton ConwayFrom the New York Times, April 15, 2020John Horton Conway, a ‘Magical Genius’ in Math, Dies at... read...
ungefär 4 år ago
Published
Second Version of a COVID-19 Simulator
I have completely rewritten the COVID-19 simulator that I described in last week's blog post and I now have a second...
ungefär 4 år ago
Published
COVID-19 Simulator
ContentsSimulatorAnimationFirst frameFinal frameFull barrierNo barrierLarger populationSmaller...
ungefär 4 år ago
Published
It is Friday the 13th Again
Today is Friday, March 13, 2020. In many parts of the world, Friday the 13th is considered unlucky. I've written blog...
ungefär 4 år ago
Published
Gene Golub’s 22nd Birthday
Tomorrow, February 29, 2020 would be Gene Golub's 22nd birthday....
ungefär 4 år ago
