Question

can any one help!!
write a c program to find addition and subtraction of complex no:s

Answer 1

#include <stdio.h>
struct complex {
       int real , imag ;
}  ;

add_complex (struct complex a , struct complex b, struct complex * c)
{
         (*c).real = a.real + b.real;
         (*c).imag = a.imag+b.imag;
}
sub_complex(struct complex a, struct complex b, struct complex * c)
{
         (*c).real = a.real - b.real;
         (*c).imag = a.imag  - b.imag;
}

print_complex (struct complex a)
{
         printf(" %d ", a.real);
        if (a.imag < 0) printf(" - ");  else printf(" + ");
         printf("%d  i ", a.imag);
}

main ()
{
  struct complex  p, q , r , s;
    p.real = 3;  p.imag = 5;  q.real = 4; q.imag = - 4 ; 
    add_complex(p, q, & r );
    sub_complex(p, q, &s );
    printf ("Sum of "); print_complex(p); printf(" and "); print_complex(q); printf(" is = ");
     print_complex(r);
    printf ("Difference of "); print_complex(p); printf(" and "); print_complex(q); printf(" is = ");
     print_complex(s);
}