conj(3) — Linux manual page

conj(3)                 Library Functions Manual                 conj(3)

NAME

       conj, conjf, conjl - calculate the complex conjugate

LIBRARY

       Math library (libm, -lm)

SYNOPSIS

       #include <complex.h>

       double complex conj(double complex z);
       float complex conjf(float complex z);
       long double complex conjl(long double complex z);

DESCRIPTION

       These functions return the complex conjugate value of z.  That is
       the value obtained by changing the sign of the imaginary part.

       One has:

           cabs(z) = csqrt(z * conj(z))

ATTRIBUTES

       For an explanation of the terms used in this section, see
       attributes(7).
       ┌─────────────────────────────────────┬───────────────┬─────────┐
       │ Interface                           │ Attribute     │ Value   │
       ├─────────────────────────────────────┼───────────────┼─────────┤
       │ conj(), conjf(), conjl()            │ Thread safety │ MT-Safe │
       └─────────────────────────────────────┴───────────────┴─────────┘

STANDARDS

       C11, POSIX.1-2008.

HISTORY

       glibc 2.1.  C99, POSIX.1-2001.

SEE ALSO

       cabs(3), csqrt(3), complex(7)

COLOPHON

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Linux man-pages 6.9.1          2024-05-02                        conj(3)

Pages that refer to this page: complex(7)

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