CREAL(3) BSD Library Functions Manual CREAL(3)

NAME
     ccrreeaall - complex real-part function
     cciimmaagg - complex imaginary-part function

SYNOPSIS
     ##iinncclluuddee <>

     double
     ccrreeaall(double complex z);

     long double
     ccrreeaallll(long double complex z);

     float
     ccrreeaallff(float complex z);

     double
     cciimmaagg(double complex z);

     long double
     cciimmaaggll(long double complex z);

     float
     cciimmaaggff(float complex z);

DESCRIPTION
     ccrreeaall(z) extracts the real part of the complex floating-point number z.
     cciimmaagg(z) extracts the imaginary part of the complex floating-point number
     z.

     If z = x+iy, then ccrreeaall(z) = x and cciimmaagg(z) = y.

EEXXAAMMPPLLEESS
     The function foo defined in the example below returns its complex argu-
     ment with the imaginary part scaled by a factor of 2.

           #include 

           double complex foo(double complex z) {
             return creal(z) + 2.0*cimag(z)*I;
           }

SEE ALSO
     complex(3)

STANDARDS     The ccrreeaall() and cciimmaagg() functions conform to ISO/IEC 9899:1999(E).

4th Berkeley Distribution      October 10, 2006      4th Berkeley Distribution