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diff --git a/upstream/opensuse-tumbleweed/man3/asin.3 b/upstream/opensuse-tumbleweed/man3/asin.3 new file mode 100644 index 00000000..74ac283f --- /dev/null +++ b/upstream/opensuse-tumbleweed/man3/asin.3 @@ -0,0 +1,118 @@ +'\" t +.\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk) +.\" and Copyright 2008, Linux Foundation, written by Michael Kerrisk +.\" <mtk.manpages@gmail.com> +.\" +.\" SPDX-License-Identifier: Linux-man-pages-copyleft +.\" +.\" References consulted: +.\" Linux libc source code +.\" Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991) +.\" 386BSD man pages +.\" Modified 1993-07-24 by Rik Faith (faith@cs.unc.edu) +.\" Modified 2002-07-25 by Walter Harms +.\" (walter.harms@informatik.uni-oldenburg.de) +.\" +.TH asin 3 2023-07-20 "Linux man-pages 6.05.01" +.SH NAME +asin, asinf, asinl \- arc sine function +.SH LIBRARY +Math library +.RI ( libm ", " \-lm ) +.SH SYNOPSIS +.nf +.B #include <math.h> +.PP +.BI "double asin(double " x ); +.BI "float asinf(float " x ); +.BI "long double asinl(long double " x ); +.fi +.PP +.RS -4 +Feature Test Macro Requirements for glibc (see +.BR feature_test_macros (7)): +.RE +.PP +.BR asinf (), +.BR asinl (): +.nf + _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L + || /* Since glibc 2.19: */ _DEFAULT_SOURCE + || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE +.fi +.SH DESCRIPTION +These functions calculate the principal value of the arc sine of +.IR x ; +that is the value whose sine is +.IR x . +.SH RETURN VALUE +On success, these functions return the principal value of the arc sine of +.I x +in radians; the return value is in the range [\-pi/2,\ pi/2]. +.PP +If +.I x +is a NaN, a NaN is returned. +.PP +If +.I x +is +0 (\-0), ++0 (\-0) is returned. +.PP +If +.I x +is outside the range [\-1,\ 1], +a domain error occurs, +and a NaN is returned. +.\" +.\" POSIX.1-2001 documents an optional range error for subnormal x; +.\" glibc 2.8 does not do this. +.SH ERRORS +See +.BR math_error (7) +for information on how to determine whether an error has occurred +when calling these functions. +.PP +The following errors can occur: +.TP +Domain error: \fIx\fP is outside the range [\-1,\ 1] +.I errno +is set to +.BR EDOM . +An invalid floating-point exception +.RB ( FE_INVALID ) +is raised. +.SH ATTRIBUTES +For an explanation of the terms used in this section, see +.BR attributes (7). +.TS +allbox; +lbx lb lb +l l l. +Interface Attribute Value +T{ +.na +.nh +.BR asin (), +.BR asinf (), +.BR asinl () +T} Thread safety MT-Safe +.TE +.sp 1 +.SH STANDARDS +C11, POSIX.1-2008. +.SH HISTORY +C99, POSIX.1-2001. +.PP +The variant returning +.I double +also conforms to +SVr4, 4.3BSD, C89. +.SH SEE ALSO +.BR acos (3), +.BR atan (3), +.BR atan2 (3), +.BR casin (3), +.BR cos (3), +.BR sin (3), +.BR tan (3) |