Roots of a matrix of polynomial coefficients

Question

Salar 2016-4-7

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/277817-roots-of-a-matrix-of-polynomial-coefficients

回答： Walter Roberson 2016-4-7

Hello,

I know how the roots function work in MATLAB. It takes a "vector" C containing coefficients of "a" polynomial, and then it'll spit out the roots of that polynomial. But now I have a Matrix that contains the coefficients of different polynomials and I'd like to find their roots? How Do I do that? Is there anyway to do that using the roots function?

Thank you!

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Walter Roberson 2016-4-7

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/277817-roots-of-a-matrix-of-polynomial-coefficients#answer_216967

Use a loop, or equivalent such as arrayfun.

There might also be a way using the symbolic toolbox and solve() and double(), maybe http://www.mathworks.com/help/symbolic/poly2sym.html . But that would certainly not be efficient.