C Tutorial/Data Type/Complex

Working with complex numbers

<source lang="cpp">#include <complex.h>

1. include <stdio.h>

int main(void) {

 double complex cx = 1.0 + 3.0*I;
 double complex  cy = 1.0 - 4.0*I;
 printf("Working with complex numbers:");
 printf("\nStarting values: cx = %.2f%+.2fi  cy = %.2f%+.2fi", creal(cx), cimag(cx), creal(cy), cimag(cy));
 double complex  sum = cx+cy;
 printf("\n\nThe sum cx + cy = %.2f%+.2fi", creal(sum),cimag(sum));
 double complex  difference = cx-cy;
 printf("\n\nThe difference cx - cy = %.2f%+.2fi", creal(difference),cimag(difference));
 double complex product = cx*cy;
 printf("\n\nThe product cx * cy = %.2f%+.2fi",creal(product),cimag(product));
 double complex quotient = cx/cy;
 printf("\n\nThe quotient cx / cy = %.2f%+.2fi", creal(quotient),cimag(quotient));
 double complex conjugate = conj(cx);
 printf("\n\nThe conjugate of cx =  %.2f%+.2fi", creal(conjugate) ,cimag(conjugate));
   return 0;

}</source>

Working with complex numbers:
Starting values: cx = 1.00+3.00i  cy = 1.00-4.00i
The sum cx + cy = 2.00-1.00i
The difference cx - cy = 0.00+7.00i
The product cx * cy = 13.00-1.00i
The quotient cx / cy = -0.65+0.41i
The conjugate of cx =  1.00-3.00i