If my K matrix is [17X17] and I want to divide it by a column matrix F=[17X1] how do I do that?

Question

Jaylene Martinez 2016-10-25

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/308975-if-my-k-matrix-is-17x17-and-i-want-to-divide-it-by-a-column-matrix-f-17x1-how-do-i-do-that

回答： Roger Stafford 2016-10-25

Matrix division

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Jan 2016-10-25

What do you expect as result? Please post a small example, because the wanted procedure is not uniquely defined.

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Roger Stafford 2016-10-25

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/308975-if-my-k-matrix-is-17x17-and-i-want-to-divide-it-by-a-column-matrix-f-17x1-how-do-i-do-that#answer_240547

在 MATLAB Online 中打开

I believe the most likely division you are asking for would divide element-wise the elements of each column of K by those of the single column in F. The result would be 17 by 17 in size. For that you should use the bsxfun function which is described at:

https://www.mathworks.com/help/matlab/ref/bsxfun.html

and would be:

bsxfun(@rdivide,K,F)

If you desire matrix division, which is a very different operation, you would need to convert F to a row vector and use the slash (/) operator:

K/F.’

The result would be a 17 by 1 column vector.