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| Commit | Line | Data |
|---|---|---|
| fea681da | 1 | .\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de) |
| 2297bf0e | 2 | .\" |
| 38f20bb9 | 3 | .\" %%%LICENSE_START(GPL_NOVERSION_ONELINE) |
| fea681da | 4 | .\" Distributed under GPL |
| 38f20bb9 | 5 | .\" %%%LICENSE_END |
| fea681da | 6 | .\" |
| c73595c2 | 7 | .TH CASINH 3 2015-04-19 "" "Linux Programmer's Manual" |
| fea681da MK |
8 | .SH NAME |
| 9 | casinh, casinhf, casinhl \- complex arc sine hyperbolic | |
| 10 | .SH SYNOPSIS | |
| 11 | .B #include <complex.h> | |
| 12 | .sp | |
| c13182ef | 13 | .BI "double complex casinh(double complex " z ); |
| d39541ec | 14 | .br |
| fea681da | 15 | .BI "float complex casinhf(float complex " z ); |
| d39541ec | 16 | .br |
| fea681da MK |
17 | .BI "long double complex casinhl(long double complex " z ); |
| 18 | .sp | |
| 20c58d70 | 19 | Link with \fI\-lm\fP. |
| fea681da | 20 | .SH DESCRIPTION |
| 5600f73a | 21 | These functions calculate the complex arc hyperbolic sine of |
| daac0b39 MK |
22 | .IR z . |
| 23 | If \fIy\ =\ casinh(z)\fP, then \fIz\ =\ csinh(y)\fP. | |
| 24 | The imaginary part of | |
| 25 | .I y | |
| 26 | is chosen in the interval [\-pi/2,pi/2]. | |
| fea681da | 27 | .LP |
| daac0b39 MK |
28 | One has: |
| 29 | .nf | |
| 30 | ||
| 31 | casinh(z) = clog(z + csqrt(z * z + 1)) | |
| 32 | .fi | |
| f0d7ce1d MK |
33 | .SH VERSIONS |
| 34 | These functions first appeared in glibc in version 2.1. | |
| 9ed4c033 MS |
35 | .SH ATTRIBUTES |
| 36 | For an explanation of the terms used in this section, see | |
| 37 | .BR attributes (7). | |
| 38 | .TS | |
| 39 | allbox; | |
| 40 | lbw30 lb lb | |
| 41 | l l l. | |
| 42 | Interface Attribute Value | |
| 43 | T{ | |
| 44 | .BR casinh (), | |
| 45 | .BR casinhf (), | |
| 46 | .BR casinhl () | |
| 47 | T} Thread safety MT-Safe | |
| 48 | .TE | |
| 47297adb | 49 | .SH CONFORMING TO |
| 9a74e018 | 50 | C99, POSIX.1-2001, POSIX.1-2008. |
| 47297adb | 51 | .SH SEE ALSO |
| fea681da MK |
52 | .BR asinh (3), |
| 53 | .BR cabs (3), | |
| 54 | .BR cimag (3), | |
| 5be56312 | 55 | .BR csinh (3), |
| a8bda636 | 56 | .BR complex (7) |