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-'\" t
-.\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
-.\" and Copyright 2008, Linux Foundation, written by Michael Kerrisk
-.\"     <mtk.manpages@gmail.com>
-.\"
-.\" SPDX-License-Identifier: GPL-1.0-or-later
-.\"
-.TH sincos 3 (date) "Linux man-pages (unreleased)"
-.SH NAME
-sincos, sincosf, sincosl \- calculate sin and cos simultaneously
-.SH LIBRARY
-Math library
-.RI ( libm ", " \-lm )
-.SH SYNOPSIS
-.nf
-.BR "#define _GNU_SOURCE" "         /* See feature_test_macros(7) */"
-.B #include <math.h>
-.PP
-.BI "void sincos(double " x ", double *" sin ", double *" cos );
-.BI "void sincosf(float " x ", float *" sin ", float *" cos );
-.BI "void sincosl(long double " x ", long double *" sin ", long double *" cos );
-.fi
-.SH DESCRIPTION
-Several applications need sine and cosine of the same angle
-.IR x .
-These functions compute both at the same time, and store the results in
-.I *sin
-and
-.IR *cos .
-Using this function can be more efficient than two separate calls to
-.BR sin (3)
-and
-.BR cos (3).
-.PP
-If
-.I x
-is a NaN,
-a NaN is returned in
-.I *sin
-and
-.IR *cos .
-.PP
-If
-.I x
-is positive infinity or negative infinity,
-a domain error occurs, and
-a NaN is returned in
-.I *sin
-and
-.IR *cos .
-.SH RETURN VALUE
-These functions return
-.IR void .
-.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 an infinity
-.I errno
-is set to
-.B EDOM
-(but see BUGS).
-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).
-.ad l
-.nh
-.TS
-allbox;
-lbx lb lb
-l l l.
-Interface	Attribute	Value
-T{
-.BR sincos (),
-.BR sincosf (),
-.BR sincosl ()
-T}	Thread safety	MT-Safe
-.TE
-.hy
-.ad
-.sp 1
-.SH STANDARDS
-GNU.
-.SH HISTORY
-glibc 2.1.
-.SH NOTES
-To see the performance advantage of
-.BR sincos (),
-it may be necessary to disable
-.BR gcc (1)
-built-in optimizations, using flags such as:
-.PP
-.in +4n
-.EX
-cc \-O \-lm \-fno\-builtin prog.c
-.EE
-.in
-.SH BUGS
-Before glibc 2.22, the glibc implementation did not set
-.\" https://www.sourceware.org/bugzilla/show_bug.cgi?id=15467
-.I errno
-to
-.B EDOM
-when a domain error occurred.
-.SH SEE ALSO
-.BR cos (3),
-.BR sin (3),
-.BR tan (3)