log1p
ES2015 Math.log1p() ponyfill
ES2015 Math.log1p() ponyfill
An ES-spec-compliant Math.log1p shim/polyfill/replacement that works as far down as ES3
Computes the natural logarithm of 1+x.
Create an iterator which evaluates the natural logarithm of 1+x for each iterated value.
Evaluate the natural logarithm of 1+x.
Compute `x * ln(y+1)` so that the result is `0` if `x = 0`.