这篇博客文章描述了qube，我的魔方立方体模拟器。源代码qubeis now available inone single filefrom this link:qube_osf.m。我还将将代码提交给MATLAB中央文件交换。像往常一样，我欢迎任何反馈。続きを読む >>

This is about linear systems with fewer equations than variables;a*x = b在哪里m-经过-nmatrixAhas fewer rows that columns, som < n。我一直称之为这样的系统wide或者fat, but this is not respectful. So I consulted the Merriam-Webster Thesaurus and found丰盛...続きを読む >>

The rank of a linear transformation is a fundamental concept in linear algebra and matrix factorizations are fundamental concepts in numerical linear algebra. Gil Strang's2020 Vision of Linear Algebra试图在介绍性线性代数课程中引入这些概念。続きを読む >>

I have added this section tomy post几周前，关于使用SVD衡量美国参议院的党派关系。続きを読む >>

许多观察家指出，近年来，美国参议院变得越来越多。在严格的政党方面，投票更频繁地进行。从参议院的滚动呼叫票数衍生出的矩阵的奇异值分解，SVD可以衡量此党派的态度。続きを読む >>

明天，2020年2月29日将是Gene Golub的22岁生日。続きを読む >>

The QR algorithm is one of the world's most successful algorithms. We can use animated gifs to illustrate three variants of the algorithm, one for computing the eigenvalues of a nonsymmetric...続きを読む >>

This is a summary of my talk at the conference庆祝詹姆斯·H·威尔金森一百周年5月29日在曼彻斯特大学。続きを読む >>

I have been writing books, programs, newsletter columns and blogs since 1990. I have now collected all of this material into one repository. Cleve's Corner Collection consists of 458 "documents", all available on the internet. There are...続きを読む >>

Latent Semantic Indexing, LSI, uses the Singular Value Decomposition of a term-by-document matrix to represent the information in the documents in a manner that facilitates responding to queries and other information retrieval tasks. I set out to learn for myself how LSI is implemented. I am finding that it is harder than I thought....続きを読む >>