man3/csin.3

   1 .\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
   2 .\"
   3 .\" %%%LICENSE_START(GPL_NOVERSION_ONELINE)
   4 .\" Distributed under GPL
   5 .\" %%%LICENSE_END
   6 .\"
   7 .TH CSIN 3 2008-08-11 "" "Linux Programmer's Manual"
   8 .SH NAME
   9 csin, csinf, csinl \- complex sine function
  10 .SH SYNOPSIS
  11 .B #include <complex.h>
  12 .sp
  13 .BI "double complex csin(double complex " z ");"
  14 .br
  15 .BI "float complex csinf(float complex " z );
  16 .br
  17 .BI "long double complex csinl(long double complex " z ");"
  18 .sp
  19 Link with \fI\-lm\fP.
  20 .SH DESCRIPTION
  21 The complex sine function is defined as:
  22 .nf
  23
  24     csin(z) = (exp(i * z) \- exp(\-i * z)) / (2 * i)
  25 .fi
  26 .SH VERSIONS
  27 These functions first appeared in glibc in version 2.1.
  28 .SH ATTRIBUTES
  29 For an explanation of the terms used in this section, see
  30 .BR attributes (7).
  31 .TS
  32 allbox;
  33 lbw24 lb lb
  34 l l l.
  35 Interface       Attribute       Value
  36 T{
  37 .BR csin (),
  38 .BR csinf (),
  39 .BR csinl ()
  40 T}      Thread safety   MT-Safe
  41 .TE
  42
  43 .SH CONFORMING TO
  44 C99, POSIX.1-2001.
  45 .SH SEE ALSO
  46 .BR cabs (3),
  47 .BR casin (3),
  48 .BR ccos (3),
  49 .BR ctan (3),
  50 .BR complex (7)