Welcome to the Calculator Program.
 Would you like to Add, Subtract, Divide, or Multiply (A,S,D,M)?
 
 You chose to _
 
 Please enter in your 1st Number:  __
 Please enter in your 2nd Number: __
 
 Your answer is:  ____
 
 Would you like to calculate another?

int main (void)
{

     int a_real,a_imaginary,j;
     int b_real,b_imaginary;
     int complex_number;

     char enter_operator;
     printf ("a real = ");
     scanf ("%d",&a_real);

     printf ("a imaginary = ");
     scanf ("%d",&a_imaginary);

     printf ("b real = ");
     scanf ("%d",&b_real);
     printf ("b imaginary = ");
     scanf ("%d",&b_imaginary);
     printf ("Enter operator = ");
     scanf ("%c",&enter_operator);
     if (enter_operator == '+') 
{
complex_number = (a_real+b_real)+j(a_imaginary+b_imaginary);

        printf ("\ncomplex number is %d\n",complex_number);
}
     else if (enter_operator == '-')
{
        complex_number = (a_real-b_real)+j(a_imaginary-b_imaginary);
        printf ("\ncomplex number is %d\n",complex_number);
}
     else if (enter_operator == '/')
{
        complex_number = ((a_real*b_real+a_imaginary*b_imaginary)/(b_real*b_real)+(b_imaginary*b_imaginary))+j((a_imaginary*b_real-a_real*b_imaginary)/(b_real*b_real+b_imaginary*b_imaginary));
        printf ("\ncomplex number is %d\n",complex_number);
}
     else if (enter_operator == '*')
{
        complex_number = ((a_real*b_real)-(a_imaginary*b_imaginary))+j((a_real*b_imaginary)+(a_real*b_real));
        printf ("\ncomplex number is %d\n",complex_number);
}
     return 0;
}