``` X1 = -fp.log(1 + fp.exp(-X)) X2 = X - fp.log(1 + fp.exp(X)) return fp.where(X > 0, X1, X2) ``` The code above has redundant computation. log and exp can be expensive. We should avoid unnecessary computation here.
The code above has redundant computation. log and exp can be expensive. We should avoid unnecessary computation here.