//Returns a generator that generates the nth derivative of elements generated by the source
public static IGenerator <float> Differentiate(this IGenerator <float> generator, int n)
{
while (true)
{
if (n == 0)
{
return(generator.CloneAndRestart());
}
if (n == 1)
{
return(generator.Differentiate());
}
generator = generator.Differentiate();
n = n - 1;
}
}