I first investigated the tower of powers... 続きを読む >>

The Lambert W function deserves to be better known. It pops up in all sorts of places. And our MATLAB function for evaluating the function is a beautiful use of the Halley method.... 続きを読む >>

The backslash operator has come to represent both the matrix origins and the usability of MATLAB.... 続きを読む >>

An option in eigshow demonstrates SVD, the matrix singular value decomposition. The emphasis is on orthogonality.... 続きを読む >>

Three more examples with eigshow, all of them degenerate in some way or another.... 続きを読む >>

One of my all-time favorite MATLAB examples is eigshow.... 続きを読む >>

By reaching 33.86 petaflops on the LINPACK Benchmark, China's Tianhe-2 supercomputer has just become the world's fastest computer. The technical computing community thinks of LINPACK not as a matrix software library, but as a benchmark. In that role LINPACK has some attractive aspects, but also some undesirable features.... 続きを読む >>

Nick Trefethen has framed the original flip chart that I described in my Lake Arrowhead Coauthor Graph blog earlier this week and has it on the wall of his office at Oxford University. His colleage Nick Hale has taken these photos. (The faded name in the cell at the lower left just northwest of mine is Tony Chan.)... 続きを読む >>

Twenty years ago, during the Householder Symposium at the Lake Arrowhead conference center , John Gilbert carried out one of the world's first computational social network analyses.... 続きを読む >>

A Golden Spiral is simulated by a continuously expanding sequence of golden rectangles and inscribed quarter circles.... 続きを読む >>