complexConjugate function
Return the conjugate of a complex number
Examples
var c1 = Complex(real: 1, imaginary: -3);
print(c1.conjugate());
/* output:
Complex(real: 1.0, imaginary: 3.0)
*/
Implementation
Complex complexConjugate(Complex a) {
return Complex(real: a.real, imaginary: -a.imaginary);
}