Change 1D attribute Tensors for scalar Tensors and use compound assignment...

Context

See aidge_core!273 (merged) related to aidge_core#207 (closed)

Change 1D attribute Tensors for scalar Tensors and use compound assignment operators on 'Parameter' to avoid reset of 'mGrad' attribute.

added Fix 🔥🔥 label

requested review from @cmoineau

assigned to @pineapple

mentioned in merge request aidge_core!273 (merged)

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added 1 commit

• bb116c6a - Reduce absolute precision requirement in Test_Adam.cpp

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added 1 commit

• e4c01874 - restore absolute precision value in test, change std::pow values to get float in Test_Adam

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merged

mentioned in commit a7637eb0

Nice fix!

Just a question, in learning we don't reset gradient for activation, is it possible that this bug was what was making learning work?