Help With Complex Number Calculator

Code:

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#include<stdio.h>
int main()
{
  int a,b,c,d,x,y;
  printf("\nEnter the first complex number:");
  scanf("%d%d",&a,&b);
  printf("\nEnter the second complex number:");
  scanf("%d%d",&c,&d);
  if(b<0)
      printf("%d-i\n",a-b);
  else
      printf("d+i\n",a+b);
  if(d<0)
      printf("d-i\n",c-d);
  else
      printf("%d+i\n",c+d);
  printf("\nADDITION ");
  x=a+c;
  y=b+d;
  if(y>0)
      printf("%d-i%d",x,-y);
  else
      printf("%d+i%d",x,+y);
printf("\n\nSUBTRACTION ");
  x=a-c;
  y=b-d;
  if(y<0)
      printf("%d-i%d",x,-y);
  else
      printf("%d+i%d",x,+y);
return 0;
}

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I was wondering how you would put do multiplication , division, and computation of the conjugate? Help Please

This sounds like mostly a question of mathematics. In terms of programming, you can make it easier by defining a complex number struct. (Note that <complex.h> is provided by the C standard library, though I think it is only from the 1999 edition of the C standard.)

right, but how would u do that? i need like an example . I'm new to this sorry :/

As in the struct? It could be as simple as:

Code:

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struct Complex
{
    int real;
    int imaginary;
};

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