How do you multiply one single constant value with a 1D array/matrix containing 25 values in Simulink?

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James Murray 2014-4-1

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评论： James Murray 2014-4-1

I am using a constant block which contains an array of 25 elements in the form [0,1,2,3,......]. I also have another signal that contains a single value e.g. 5. I would like to multiply 5 with each of the elements in that array represented by a constant.

When I try to use the simulink product block I get an error saying "Error in port widths or dimensions. Invalid dimension has been specified for input port 1 of 'Combined/Product1'."

How do I get over this error?

Thanks

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Mischa Kim 2014-4-1

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编辑：Mischa Kim 2014-4-1

James, simply use a Gain block (Commonly Used Blocks) and choose Element-wise multiplication (double-click to open the block). The same should work also with the Product block.

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Mischa Kim 2014-4-1

in1 would be the step signal. The constant is a vector with 25 elements.

James Murray 2014-4-1

Thank you so much for your constant help in my questions. That helped a lot.

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