public ComplexNumber Dif(ComplexNumber x)
{
ComplexNumber result = new ComplexNumber(x.realNum - realNum, x.imageNum - imageNum);
return(result);
}
public ComplexNumber Summ(ComplexNumber y)
{
ComplexNumber result = new ComplexNumber(y.realNum + realNum, y.imageNum + imageNum);
return(result);
}