public Complex_counter Div(Complex_counter num1)//除法
{
double x;
double y;
x = (num1.real * real + num1.imaginary * imaginary) / (num1.imaginary * num1.imaginary + num1.real * num1.real);
y = (num1.real * imaginary - num1.imaginary * real) / (num1.imaginary * num1.imaginary + num1.real * num1.real);
return(new Complex_counter(x, y));
}
public Complex_counter Sub(Complex_counter num1)//减法
{
double x;
double y;
x = num1.real - real;
y = num1.imaginary - imaginary;
return(new Complex_counter(x, y));
}
public Complex_counter Mul(Complex_counter num1)//乘法
{
double x;
double y;
x = num1.real * real - num1.imaginary * imaginary;
y = num1.imaginary * imaginary + num1.real * imaginary;
return(new Complex_counter(x, y));
}
public Complex_counter Add(Complex_counter num1) //加法
{
double x;
double y;
x = num1.real + real;
y = num1.imaginary + imaginary;
return(new Complex_counter(x, y));
}
