projects / thirdparty / man-pages.git / blame
| Commit | Line | Data |
|---|---|---|
| fea681da MK |
1 | .\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk) |
| 2 | .\" | |
| 3 | .\" Permission is granted to make and distribute verbatim copies of this | |
| 4 | .\" manual provided the copyright notice and this permission notice are | |
| 5 | .\" preserved on all copies. | |
| 6 | .\" | |
| 7 | .\" Permission is granted to copy and distribute modified versions of this | |
| 8 | .\" manual under the conditions for verbatim copying, provided that the | |
| 9 | .\" entire resulting derived work is distributed under the terms of a | |
| 10 | .\" permission notice identical to this one. | |
| c13182ef | 11 | .\" |
| fea681da MK |
12 | .\" Since the Linux kernel and libraries are constantly changing, this |
| 13 | .\" manual page may be incorrect or out-of-date. The author(s) assume no | |
| 14 | .\" responsibility for errors or omissions, or for damages resulting from | |
| 15 | .\" the use of the information contained herein. The author(s) may not | |
| 16 | .\" have taken the same level of care in the production of this manual, | |
| 17 | .\" which is licensed free of charge, as they might when working | |
| 18 | .\" professionally. | |
| c13182ef | 19 | .\" |
| fea681da MK |
20 | .\" Formatted or processed versions of this manual, if unaccompanied by |
| 21 | .\" the source, must acknowledge the copyright and authors of this work. | |
| 22 | .\" | |
| 23 | .\" References consulted: | |
| 24 | .\" Linux libc source code | |
| 25 | .\" Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991) | |
| 26 | .\" 386BSD man pages | |
| 27 | .\" Modified 1993-07-24 by Rik Faith (faith@cs.unc.edu) | |
| 28 | .\" Modified 2002-07-25 by Walter Harms | |
| 29 | .\" (walter.harms@informatik.uni-oldenburg.de) | |
| 30 | .\" | |
| 31 | .TH ASIN 3 2002-07-25 "" "Linux Programmer's Manual" | |
| 32 | .SH NAME | |
| 33 | asin, asinf, asinl \- arc sine function | |
| 34 | .SH SYNOPSIS | |
| 35 | .nf | |
| 36 | .B #include <math.h> | |
| 37 | .sp | |
| 38 | .BI "double asin(double " x ); | |
| 39 | .br | |
| 40 | .BI "float asinf(float " x ); | |
| 41 | .br | |
| c13182ef | 42 | .BI "long double asinl(long double " x ); |
| fea681da MK |
43 | .fi |
| 44 | .sp | |
| 45 | Link with \-lm. | |
| 46 | .SH DESCRIPTION | |
| 63aa9df0 | 47 | The \fBasin\fP() function calculates the arc sine of \fIx\fP; that is |
| fea681da | 48 | the value whose sine is \fIx\fP. If \fIx\fP falls outside the range |
| 63aa9df0 | 49 | \-1 to 1, \fBasin\fP() fails and \fIerrno\fP is set. |
| fea681da | 50 | .SH "RETURN VALUE" |
| 63aa9df0 | 51 | The \fBasin\fP() function returns the arc sine in radians and the |
| 4d9b6984 | 52 | value is mathematically defined to be between \-PI/2 and PI/2 |
| fea681da MK |
53 | (inclusive). |
| 54 | .SH ERRORS | |
| 55 | .TP | |
| 56 | .B EDOM | |
| 57 | \fIx\fP is out of range. | |
| 58 | .SH "CONFORMING TO" | |
| 1eb85d14 | 59 | SVr4, POSIX.1-2001, 4.3BSD, C89, C99. |
| c13182ef | 60 | The |
| 9d9dc1e8 MK |
61 | .I float |
| 62 | and | |
| 63 | .I "long double" | |
| 64 | variants are C99 requirements. | |
| fea681da MK |
65 | .SH "SEE ALSO" |
| 66 | .BR acos (3), | |
| 36268806 | 67 | .BR casin (3), |
| fea681da MK |
68 | .BR atan (3), |
| 69 | .BR atan2 (3), | |
| 70 | .BR cos (3), | |
| 71 | .BR sin (3), | |
| 72 | .BR tan (3) |