Write some equations as product between function-matrix and constant-matrix
显示 更早的评论
Hi,
Is there some matlab command to collect functions and constant as two matrices or a matrix and a vector respectively. In other words, for example, if I have this symbolic system of equations:
m*x^2 + n*y = z1
b*x + c*y^2 = z2
Is there a way to getout, automatically, the system as product
Z = X*k
where X is a matrix of only function terms, not constant, at most 0 and k is a matrix (or a vector) of (and only) constants such that:
Z = [z1; z2];
I don't mind size of X and k
2 个评论
Walter Roberson
2012-12-16
Something like coeffs() ?
回答（1 个）
Azzi Abdelmalek
2012-12-17
编辑：Azzi Abdelmalek
2012-12-17
K*X=Z
%with:
K=[0 m n 0;b 0 0 c]
X=[x;x^2;y;y^2]
Z=[z1;z2]
4 个评论
Marco
2012-12-17
Azzi Abdelmalek
2012-12-17
automatic ? how ?
Walter Roberson
2012-12-17
Marco wants to be able to input the symbolic expressions and have the matrices output.
Marco
2012-12-17
类别
在 帮助中心 和 File Exchange 中查找有关 Mathematics 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
