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CIMAG(3)		 BSD Library Functions Manual		      CIMAG(3)

NAME
     cimag, cimagf, cimagl, conj, conjf, conjl,	cproj, cprojf, cprojl, creal,
     crealf, creall -- functions to manipulate complex numbers

LIBRARY
     Math Library (libm, -lm)

SYNOPSIS
     #include <complex.h>

     double
     cimag(double complex z);

     float
     cimagf(float complex z);

     long double
     cimagl(long double	complex	z);

     double complex
     conj(double complex z);

     float complex
     conjf(float complex z);

     long double complex
     conjl(long	double complex z);

     double complex
     cproj(double complex z);

     float complex
     cprojf(float complex z);

     long double complex
     cprojl(long double	complex	z);

     double
     creal(double complex z);

     float
     crealf(float complex z);

     long double
     creall(long double	complex	z);

DESCRIPTION
     Let a+b*i denote the complex number z.

     The creal() functions return the real part	a, and the cimag() functions
     return the	imaginary part b.

     The conj()	functions return the complex conjugate a-b*i.

     The cproj() functions return the projection onto the Riemann sphere.  If
     z contains	an infinite component, then the	result is infinity +- 0*i,
     where the (zero) imaginary	part of	the result has the same	sign as	b.
     Otherwise,	the result is z.

     These functions do	not signal any floating	point exceptions.

STANDARDS
     The cimag(), conj(), cproj(), and creal() functions conform to ISO/IEC
     9899:1999 ("ISO C99").

HISTORY
     The cimag(), conj() and creal() functions first appeared in FreeBSD 5.3.
     The cproj() functions appeared in FreeBSD 8.0.

BSD				August 7, 2008				   BSD

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | STANDARDS | HISTORY

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