public Complex64 Power(Complex64 y)
{
double c = y.real;
double d = y.imag;
int power = (int)c;
if (power == c && power >= 0 && d == .0)
{
Complex64 result = new Complex64(1.0);
if (power == 0)
{
return(result);
}
Complex64 factor = this;
while (power != 0)
{
if ((power & 1) != 0)
{
result = result * factor;
}
factor = factor * factor;
power >>= 1;
}
return(result);
}
else if (IsZero)
{
return(y.IsZero ? Complex64.MakeReal(1.0) : Complex64.MakeReal(0.0));
}
else
{
double a = real;
double b = imag;
double powers = a * a + b * b;
double arg = Math.Atan2(b, a);
double mul = Math.Pow(powers, c / 2) * Math.Pow(Math.E, -d * arg);
double common = c * arg + .5 * d * Math.Log(powers, Math.E);
return(new Complex64(mul * Math.Cos(common), mul * Math.Sin(common)));
}
}
