Feature request: Lambert W function

[melodicore]

There doesn't seem to be any Java library that implements the Lambert W function with arbitrary precision numbers, so as a last resort I am requesting for that functionality in BigMath.

As a quick summary, the Lambert W function calculates the inverse of the function f(x)=x*e^x.

[axkr]

You Can find a Java implementation in apfloat.org project.

Search for LambertWHelper.java in the Github repo.

Note: in Mathematica the function is called ProductLog.

[melodicore]

You Can find a Java implementation in apfloat.org project.

Thank you! I didn't get to check it properly yet but this seems to be exactly what I'm looking for.