operator * method
Multiply two complex number
Examples
var c1 = Complex(real: 2, imaginary: 5);
var c2 = Complex(real: 4, imaginary: -3);
print(c1 * c2);
/*output:
Complex(real: 13.0, imaginary: 14.0)
*/
Implementation
Complex operator *(Complex b) {
return Complex(
real: real * b.real - imaginary * b.imaginary,
imaginary: real * b.imaginary + imaginary * b.real);
}