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CREAL(3) Library Functions Manual CREAL(3) NAME creal, crealf, creall - complex real functions SYNOPSIS #include <complex.h> double creal(double complex z); float crealf(float complex z); long double creall(long double complex z); #include <tgmath.h> complex-float creal(complex-float z); DESCRIPTION These functions compute the real part of z. RETURN VALUES These functions return the real part value. ERRORS No errors are defined. APPLICATION USAGE For a variable z of type complex: z == creal(z) + cimag(z)*I SEE ALSO carg(3), cimag(3), conj(3), cproj(3), IEEE Std 1003.1-2001 ("POSIX.1") <complex.h> COPYRIGHT Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html . NetBSD 8.99.34 September 27, 2017 NetBSD 8.99.34