Matrix operations with continuous variable

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mattzoe
mattzoe 2019-6-9
回答： Walter Roberson 2019-6-9
Hello everybody,
I want to multiply two matrices, which contains a continuous variable q and some constants.
To solve this problem, I must use the numerically way.
When I fill the matrix, I get this problem "Dimensions of arrays being concatenated are not consistent.". I think this comes from the constants in the matrices.
Another problem is how can I mutiply the matrices stepwise for each value of q?
Is there an easy way to do this?
q = 4:2:10; % q is a continuous variable
B = [q, cos(q) ;
5, 3*q ;
2*q, 8]
C = [q, sin(q) ;
2, 3*q ;
q, cos(q)]
A = B .* C
Best regards!

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Walter Roberson
Walter Roberson 2019-6-9
B = [q, cos(q) ;
5*ones(size(q)), 3*q ;
2*q, 8*ones(size(q))]

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