.\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
+.\"
+.\" %%%LICENSE_START(GPL_NOVERSION_ONELINE)
.\" Distributed under GPL
+.\" %%%LICENSE_END
.\"
-.TH CSINH 3 2002-07-28 "" "Linux Programmer's Manual"
+.TH CSINH 3 2017-09-15 "" "Linux Programmer's Manual"
.SH NAME
csinh, csinhf, csinhl \- complex hyperbolic sine
.SH SYNOPSIS
.B #include <complex.h>
-.sp
+.PP
.BI "double complex csinh(double complex " z ");"
.br
.BI "float complex csinhf(float complex " z ");"
.br
.BI "long double complex csinhl(long double complex " z ");"
-.sp
+.PP
Link with \fI\-lm\fP.
.SH DESCRIPTION
+These functions calculate the complex hyperbolic sine of
+.IR z .
+.PP
The complex hyperbolic sine function is defined as:
+.PP
.nf
-
csinh(z) = (exp(z)\-exp(\-z))/2
.fi
-.SH "CONFORMING TO"
-C99
-.SH "SEE ALSO"
+.SH VERSIONS
+These functions first appeared in glibc in version 2.1.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lbw27 lb lb
+l l l.
+Interface Attribute Value
+T{
+.BR csinh (),
+.BR csinhf (),
+.BR csinhl ()
+T} Thread safety MT-Safe
+.TE
+.sp 1
+.SH CONFORMING TO
+C99, POSIX.1-2001, POSIX.1-2008.
+.SH SEE ALSO
.BR cabs (3),
+.BR casinh (3),
.BR ccosh (3),
.BR ctanh (3),
.BR complex (7)