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Cell Array and Matrix polynimial

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RoboKid
RoboKid 2013-11-10
编辑： RoboKid 2015-5-17
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.'

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Azzi Abdelmalek
Azzi Abdelmalek 2013-11-10
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)
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RoboKid
RoboKid 2013-11-10
Is there anyway to change the class of D to sym from Double.
Azzi Abdelmalek
Azzi Abdelmalek 2013-11-10
编辑：Azzi Abdelmalek 2013-11-10
cellfun(@(x) sym(x),D,'un',0)
In your case D is not double, it's cell

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