What kind of multiplication is going on here?

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Abu Abdullah
Abu Abdullah 2021-1-16
回答： dpb 2021-1-16
Apparently multiplying by '*' utilizes matrix multiplication, while multiplying by '.*' is element-wise multiplication.
So if I do in the command:
[-5: 0.1: 5]*[5]
I get an output like it's doing scalar multiplication with the 5. But I don't think a 1x101 matrix should be able to matrix multipy with a 1x1... And given that the '*' operator was used, why would there be any output at all?

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dpb
dpb 2021-1-16
The degenerate case of a 1x1 matrix IS a scalar and so '*' reverts to scalar operation.
It would be simply too inconvenient if it weren't the case.

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