aesara_function and dot products

[Peter Bleackley]

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?

[Peter Stahlecker]

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 <peter.b...@playfultechnology.co.uk> 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

[Aaron Meurer]

It sounds like whatever the Aesara version of dot product is just
needs to be added to the Aesara printer so that it knows how to handle
DotProduct.

Aaron Meurer