From https://news.ycombinator.com/item?id=37686351 :
>> sympy.utilities.lambdify.lambdify() https://github.com/sympy/sympy/blob/a76b02fcd3a8b7f79b3a88df... :
>> """Convert a SymPy expression into a function that allows for fast numeric evaluation""" [e.g. the CPython math module, mpmath, NumPy, SciPy, CuPy, JAX, TensorFlow, SymPy, numexpr,]
sympy#20516: "re-implementation of torch-lambdify" https://github.com/sympy/sympy/pull/20516