seems to be an issue with return statements in _radd and _rmul inside engine.py

[reachpalaniv]

Based on the video, if I am not mistaken, _radd and _rmul are supposed to flip the return values to other+self.
the reverse function is to address the condition where a scalar precedes the operators

[AsmitPS]

When radd or rmul are called, they automatically interchange the data between self and other, so you don't need to explicitly reverse the operation.