csinh.3: Add introductory sentence explaining what these functions calculate

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2015-04-12 12:30:09 +02:00
parent 2feb67afc8
commit b571cae4d1
1 changed files with 3 additions and 0 deletions

View File

@ -18,6 +18,9 @@ csinh, csinhf, csinhl \- complex hyperbolic sine
.sp
Link with \fI\-lm\fP.
.SH DESCRIPTION
These functions calculate the complex hyperbolic sine of
.IR z .
The complex hyperbolic sine function is defined as:
.nf