/* working with complex numbers in C */
#include <stdio.h>
#include <complex.h>
int main (void) {
double complex c1 = 1.0 + 3.0 * I;
double complex c2 = 1.0 - 4.0 * I;
double complex sum, difference, product, quotient, conj1, conj2;
printf ("c1 = %.2lf %+.2lfi\n", creal(c1), cimag(c1));
printf ("c2 = %.2lf %+.2lfi\n", creal(c2), cimag(c2));
sum = c1 + c2;
printf ("c1 + c2 = %.2lf %+.2lfi\n", creal(sum), cimag(sum));
difference = c1 - c2;
printf ("c1 + c2 = %.2lf %+.2lfi\n", creal(difference), cimag(difference));
product = c1 * c2;
printf ("c1 * c2 = %.2lf %+.2lfi\n", creal(product), cimag(product));
quotient = c1 / c2;
printf ("c1 / c2 = %.2lf %+.2lfi\n", creal(quotient), cimag(quotient));
conj1 = conj(c1);
printf ("Conjugate of c1 = %.2lf %+.2lfi\n", creal(conj1), cimag(conj1));
conj2 = conj(c2);
printf ("Conjugate of c2 = %.2lf %+.2lfi\n", creal(conj2), cimag(conj2));
return (0);
}
