If you convert the scalar into a sympy matrix, like sympy.Matrix([scalar])
subtraction will work. I believe it worked for me once.

On Fri 21. Oct 2022 at 20:59, Peter Bleackley <
[email protected]> wrote:

> I have an expression that involves a dot product, and I want to generate
> aesara code from it. Unfortunately, aesara_function does not seem to
> recognise DotProduct objects (I get a KeyError expection from the mapping
> dictionary). I have tried using MatMul instead, but elsewhere in the
> expression I need to subtract a scalar from the dot product, and sympy will
> not subract a scalar from a matrix expression.
>
> Can anybody suggest what I should do about this?
>
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Best regards,

Peter Stahlecker

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