清空筛选条件
清空筛选条件

help me find basis and dimension

3 次查看（过去 30 天）
Nguyen Hoang Thien Phuoc
I don't know!!
help me !
use matlab :
find basis and dimension intersection and sum of two subspace F and G!
Thanks a lot!

请先登录，再回答此问题。

回答（1 个）

Roger Stafford
Roger Stafford 2013-1-3
Assume that a subspace is represented as being the subspace spanned by a set of columns vectors.
To find a basis of the "sum" of F and G (presumably you mean the subspace spanned by their union) just combine the sets of column vectors and then use 'orth'. The number of columns of the result would be your dimension.
To find a basis for their intersection use 'null' on each, find the basis of the union of these as above, then do 'null' on the result of that.
Warning: The 'orth' and 'null' functions are numerical and round-off errors may cause some of the above results to be inaccurate.

类别

在 Help Center 和 File Exchange 中查找有关 Linear Algebra 的更多信息

标签

尚未输入任何标签。

产品

Community Treasure Hunt

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

Start Hunting!

Translated by