Posts 1 - 10 of 94

搜索结果: Numerical Analysis

A Sixty-Year Old Program for Predicting the Future 1

The graphics in my post about R^2 were produced by an updated version of a sixty-year old program involving the U.S. census. Originally, the program was based on census data from 1900 to 1960 and sought to predict the population in 1970. The software back then was written in Fortran, the predominate technical programming language a half century ago. I have updated the MATLAB version of the program so that it now uses census data from 1900 to 2020.... 更多内容 >>

Nick Higham (1961-2024) 1

Nick Higham passed away last Saturday. Nick was a close friend of mine and a great friend of MATLAB. I will leave it to others to describe his research and teaching, his many honors, and his service to our community, especially SIAM. I have just a few, more personal, comments.... 更多内容 >>

Exponential Fitting, Separable Least Squares, and Quahogs 1

We have been investigating a recent bug report about fitnlm, the Statistics and Machine Learning Toolbox function for robust fitting of nonlinear models.... 更多内容 >>

Exploring Matrices

I have spent much of my career working to bring abstract linear algebra and practical matrix computation closer together. This project is my latest effort.... 更多内容 >>

MiniGallery, Sampler of MATLAB Test Matrices

MATLAB has dozens of test matrices. Here are a few.... 更多内容 >>

ARLS, Automatically Regularized Least Squares 13

(I have a guest blogger today. Ron Jones worked with me in 1985 for his Ph. D. from the University of New Mexico. He retired recently after nearly 40 years at Sandia National Labs in Albuquerque and now has a chance to return to the problem he studied in his thesis. -- CBM)... 更多内容 >>

Happy Birthday, John Gilbert

I have just returned from a one-day workshop at U. C. Santa Barbara honoring John Gilbert on his 70th birthday and his official retirement after 20 years on the UCSB faculty.... 更多内容 >>

Singular Matrix Pencils and the QZ Algorithm, Update

(The January 5 posting was premature and incomplete.)... 更多内容 >>

Christian Reinsch, Roland Bulirsch, and the SVD 2

Christian Reinsch and Roland Bulirsch both passed away recently, Reinsch on October 8 and Bulirsch on September 21. Reinsch was 88 years old and Bulirsch was 89. Both of them were retired professors of numerical analysis at the Technical University of Munich. Both of them were friends of mine. But in almost all other ways, they were very different people.... 更多内容 >>

An Interesting, and Perhaps New, Matrix 1

I do not recall having seen this matrix before, but I will not be surprised to learn that somebody else already knows all about it, especially if that person's name is Nick.... 更多内容 >>

Posts 1 - 10 of 94