log2 method
Calculates the base-2 logarithm of the complex number.
Implements the formula:
log2(z) = log(z) / log(2)
Where log is the natural logarithm.
Example:
var z = Complex(8, 0);
var z_log2 = z.log2();
print(z_log2); // Output: 3 + 0i
Implementation
Complex log2() {
if (isNaN) return Complex.nan();
if (isZero) return Complex(double.negativeInfinity, 0);
return log() / math.ln2;
}