private static object Atanh(List <Expression> p)
{
double input = p[0];
if (Math.Abs(input) >= 1)
{
throw new NumberException();
}
return(XLMath.ATanh(p[0]));
}
private static object Atanh(List <Expression> p)
{
return(XLMath.ATanh(p[0]));
}