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man:casinf

CASIN(3) Linux Programmer's Manual CASIN(3)

NAME

     casin, casinf, casinl - complex arc sine

SYNOPSIS

     #include <complex.h>
     double complex casin(double complex z);
     float complex casinf(float complex z);
     long double complex casinl(long double complex z);
     Link with -lm.

DESCRIPTION

     These  functions calculate the complex arc sine of z.  If y = casin(z),
     then z = csin(y).  The real  part  of  y  is  chosen  in  the  interval
     [-pi/2,pi/2].
     One has:
         casin(z) = -i clog(iz + csqrt(1 - z * z))

VERSIONS

     These functions first appeared in glibc in version 2.1.

ATTRIBUTES

     For   an   explanation   of   the  terms  used  in  this  section,  see
     attributes(7).
     allbox; lbw28 lb lb l l l.  Interface Attribute Value T{ casin(),  cas-
     inf(), casinl() T}   Thread safety  MT-Safe

CONFORMING TO

     C99, POSIX.1-2001, POSIX.1-2008.

SEE ALSO

     clog(3), csin(3), complex(7)

COLOPHON

     This  page  is  part of release 4.16 of the Linux man-pages project.  A
     description of the project, information about reporting bugs,  and  the
     latest     version     of     this    page,    can    be    found    at
     https://www.kernel.org/doc/man-pages/.
                                2015-04-19                          CASIN(3)
/data/webs/external/dokuwiki/data/pages/man/casinf.txt · Last modified: 2019/05/17 09:47 by 127.0.0.1

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