[math] change the internal implementation of surrogate function#562

Merged

chaoming0625 merged 3 commits intomasterfrom math

Dec 22, 2023

+1,774-9

Commits on Dec 22, 2023

[math] add brainpy.math.is_bp_array
chaoming0625
committed
[math] change the internal of surrogate function, add heaviside_p primitive, so that all surrogate functions support JVP (forward) and VJP (backward) differentiation
chaoming0625
committed
bug fix
chaoming0625
committed