#include <stdio.h>
#include <stdlib.h>
#include <complex.h>
#include <math.h>
int main() {
_Complex double *c1, *c2, *sum, *prod, *c1csin, *c2csin, *c1ccos, *c2ccos;
c1 = (_Complex double *) malloc (sizeof(_Complex double));
c2 = (_Complex double *) malloc (sizeof(_Complex double));
sum = (_Complex double *) malloc (sizeof(_Complex double));
prod = (_Complex double *) malloc (sizeof(_Complex double));
c1csin = (_Complex double *) malloc (sizeof(_Complex double));
c2csin = (_Complex double *) malloc (sizeof(_Complex double));
c1ccos = (_Complex double *) malloc (sizeof(_Complex double));
c2ccos = (_Complex double *) malloc (sizeof(_Complex double));
*c1 = 1.3 + 2.5i;
*c2 = -2.7 + 0.3i;
printf("c1 = %g + %gi\n", creal(*c1), cimag(*c1));
printf("c2 = %g + %gi\n", creal(*c2), cimag(*c2));
*sum = *c1 + *c2;
*prod = *c1 * (*c2);
printf("c1 + c2 = %g + %gi\n", creal(*sum), cimag(*sum));
printf("c1 * c2 = %g + %gi\n", creal(*prod), cimag(*prod));
*c1csin = csin(*c1);
*c2csin = csin(*c1);
printf("csin(c1) = %g + %gi\n", creal(*c1csin), cimag(*c1csin));
printf("csin(c2) = %g + %gi\n", creal(*c1csin), cimag(*c1csin));
*c1ccos = ccos(*c1);
*c2ccos = ccos(*c1);
printf("ccos(c1) = %g + %gi\n", creal(*c1ccos), cimag(*c1ccos));
printf("ccos(c2) = %g + %gi\n", creal(*c1ccos), cimag(*c1ccos));
return 0;
}
