/// <summary>
/// The natural logarithm, ln(x) (log base e)
/// </summary>
/// <remarks>This is a very slow function, despite repeated attempts at optimisation.
/// To make it any faster, different strategies would be needed for integer operations.
/// It does, however, scale well with the number of bits.
/// </remarks>
/// <param name="n1">The number to find the natural logarithm of</param>
public static BigFloat Log(BigFloat n1)
{
BigFloat res = new BigFloat(n1);
res.Log();
return res;
}