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csqrt (3)
  • csqrt (3) ( Solaris man: Библиотечные вызовы )
  • csqrt (3) ( Русские man: Библиотечные вызовы )
  • >> csqrt (3) ( Linux man: Библиотечные вызовы )
  • csqrt (3) ( POSIX man: Библиотечные вызовы )
    •  

    NAME

    csqrt, csqrtf, csqrtl - complex square root
 

    SYNOPSIS

    #include <complex.h>

    double complex csqrt(double complex z);
    float complex csqrtf(float complex z);
    long double complex csqrtl(long double complex z);

    Link with -lm.  

    DESCRIPTION

    Calculate the square root of a given complex number, with non-negative real part, and with a branch cut along the negative real axis. (That means that csqrt(-1+eps*I) will be close to I while csqrt(-1-eps*I) will be close to -I, if eps is a small positive real number.)  

    VERSIONS

    These functions first appeared in glibc in version 2.1.  

    CONFORMING TO

    C99.  

    SEE ALSO

    cabs(3), cexp(3), complex(7)  

    COLOPHON

    This page is part of release 3.14 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.

     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    VERSIONS
    CONFORMING TO
    SEE ALSO
    COLOPHON

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