清空筛选条件
清空筛选条件

null function

2 次查看（过去 30 天）
Dan Parrish
Dan Parrish 2011-7-26
How does the null function work ? When I row-reduce as a method of finding eigenvectors, I sometimes get a very different answer from what the null function produces.

请先登录，再回答此问题。

回答（1 个）

Walter Roberson
Walter Roberson 2011-7-27
http://www.mathworks.com/help/techdoc/ref/null.html
Z = null(A) is an orthonormal basis for the null space of A obtained from the singular value decomposition. That is, A*Z has negligible elements, size(Z,2) is the nullity of A, and Z'*Z = I

类别

在 Help Center 和 File Exchange 中查找有关 Operating on Diagonal Matrices 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by