How does the matrix product block work?

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bao nguyen
bao nguyen 2024-1-26
回答： Fangjun Jiang 2024-5-7
I am doing ... just simple matrix multiplication in simulink and it does not work. Just by speculation alone, the 2 input signals that go into the product block have the dimension 2 and [2x2] respectively, so I expect the block should output some 2-vector, but it does not. Could somebody help me?
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Paul
Paul 2024-1-27
Are you trying to form M*tau where tau is column vector? Or tau*M where tau is row vector?

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回答（2 个）

Walter Roberson
Walter Roberson 2024-1-26
The input signal is dimension 2, not 1 x 2 or 2 x 1. You need to pass it through a reshape block https://www.mathworks.com/help/simulink/slref/reshape.html
Fangjun Jiang
Fangjun Jiang 2024-5-7
For the [1 2] Constant block, un-check "Interpret vector parameters as 1-D".
For your Inport block, specify its Port dimensions as [1 2]

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