pow method
Calculates the power having a complex number as base and a real value as exponent. The expression is in the form (a + bi)x.
Implementation
Complex pow(num x) {
final logRe = x * math.log(abs());
final logIm = x * phase();
final modAns = math.exp(logRe);
return Complex(modAns * math.cos(logIm), modAns * math.sin(logIm));
}