Working with complex numbers : Complex « Data Type « C Tutorial

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C Tutorial » Data Type » Complex 
2.32.1.Working with complex numbers
#include <complex.h>
#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;
}
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
2.32.Complex
2.32.1.Working with complex numbers
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