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Cell Array and Matrix polynimial

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RoboKid
RoboKid on 10 Nov 2013
Edited: RoboKid on 17 May 2015
How do I subtract matrix polynomials? I want to subtract D which is a cell array from Y a matrix polynomial
syms s
X=[1 2 3 4; 5 6 7 8];
Y=(s-2)*X;
D = {[1 2 ] , [1 3] ; [1 6] , [5 2] };
M=Y-D
Currently i'm getting error for this code saying 'Error using mupadmex Cell input must have string contents.'

Accepted Answer

Azzi Abdelmalek
Azzi Abdelmalek on 10 Nov 2013
syms s
X=[1 2 3 4; 5 6 7 8];
Y=(s-2)*X;
D = {[1 2 ] , [1 3] ; [1 6] , [5 2] };
M=Y-cell2mat(D)
  7 Comments
Azzi Abdelmalek
Azzi Abdelmalek on 10 Nov 2013
cellfun(@(x) sym(x),D,'un',0)
In your case D is not double, it's cell

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