Multiplication Of Two Complex Numbers

C Program For Multiplication For Two Complex Numbers

Source Code:


#include>stdio.h>
#include>conio.h>

struct complex
  {
  int real;
  int img;
  };
struct complex multi(struct complex,struct complex);

void main()
  {
  struct complex a,b,c;
  clrscr();
  printf("Enter real & imaginary part of 1st no: ");
  scanf("%d+i%d",&a.real,&a.img);
  printf("Enter real & imaginary part of 2nd no: ");
  scanf("%d+i%d",&b.real,&b.img);
  c=multi(a,b);
  printf("\nThe multiplication of two complex no is: %d+i(%d)",c.real,c.img);
  getch();
  }

struct complex multi(struct complex a,struct complex b)
  {
  struct complex c;
  c.real=(a.real*b.real)-(a.img*b.img);
  c.img=(a.img*b.real)+(a.real*b.img);
  return c;
  }


OUTPUT 1:
Enter real & imaginary part of 1st no: 2+i3
Enter real & imaginary part of 2nd no: 3+i2

The multiplication of two complex no is: 0+i(13)

OUTPUT 2:
Enter real & imaginary part of 1st no: 5+i3
Enter real & imaginary part of 2nd no: 1+i2

The multiplication of two complex no is: -1+i(13)

OUTPUT 3:
Enter real & imaginary part of 1st no: 2+i0
Enter real & imaginary part of 2nd no: 4+i4

The multiplication of two complex no is: 8+i(8)