summaryrefslogtreecommitdiffstats
path: root/man3/atan2.3
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-24 04:52:22 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-24 04:52:22 +0000
commit3d08cd331c1adcf0d917392f7e527b3f00511748 (patch)
tree312f0d1e1632f48862f044b8bb87e602dcffb5f9 /man3/atan2.3
parentAdding debian version 6.7-2. (diff)
downloadmanpages-3d08cd331c1adcf0d917392f7e527b3f00511748.tar.xz
manpages-3d08cd331c1adcf0d917392f7e527b3f00511748.zip
Merging upstream version 6.8.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'man3/atan2.3')
-rw-r--r--man3/atan2.3174
1 files changed, 0 insertions, 174 deletions
diff --git a/man3/atan2.3 b/man3/atan2.3
deleted file mode 100644
index 9ac661b..0000000
--- a/man3/atan2.3
+++ /dev/null
@@ -1,174 +0,0 @@
-'\" 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 2002-07-27 by Walter Harms
-.\" (walter.harms@informatik.uni-oldenburg.de)
-.\"
-.TH atan2 3 2023-10-31 "Linux man-pages 6.7"
-.SH NAME
-atan2, atan2f, atan2l \- arc tangent function of two variables
-.SH LIBRARY
-Math library
-.RI ( libm ", " \-lm )
-.SH SYNOPSIS
-.nf
-.B #include <math.h>
-.P
-.BI "double atan2(double " y ", double " x );
-.BI "float atan2f(float " y ", float " x );
-.BI "long double atan2l(long double " y ", long double " x );
-.fi
-.P
-.RS -4
-Feature Test Macro Requirements for glibc (see
-.BR feature_test_macros (7)):
-.RE
-.P
-.BR atan2f (),
-.BR atan2l ():
-.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 tangent of
-.IR y/x ,
-using the signs of the two arguments to determine
-the quadrant of the result.
-.SH RETURN VALUE
-On success, these functions return the principal value of the arc tangent of
-.I y/x
-in radians; the return value is in the range [\-pi,\ pi].
-.P
-If
-.I y
-is +0 (\-0) and
-.I x
-is less than 0, +pi (\-pi) is returned.
-.P
-If
-.I y
-is +0 (\-0) and
-.I x
-is greater than 0, +0 (\-0) is returned.
-.P
-If
-.I y
-is less than 0 and
-.I x
-is +0 or \-0, \-pi/2 is returned.
-.P
-If
-.I y
-is greater than 0 and
-.I x
-is +0 or \-0, pi/2 is returned.
-.P
-.\" POSIX.1 says:
-.\" If
-.\" .I x
-.\" is 0, a pole error shall not occur.
-.\"
-If either
-.I x
-or
-.I y
-is NaN, a NaN is returned.
-.P
-.\" POSIX.1 says:
-.\" If the result underflows, a range error may occur and
-.\" .I y/x
-.\" should be returned.
-.\"
-If
-.I y
-is +0 (\-0) and
-.I x
-is \-0, +pi (\-pi) is returned.
-.P
-If
-.I y
-is +0 (\-0) and
-.I x
-is +0, +0 (\-0) is returned.
-.P
-If
-.I y
-is a finite value greater (less) than 0, and
-.I x
-is negative infinity, +pi (\-pi) is returned.
-.P
-If
-.I y
-is a finite value greater (less) than 0, and
-.I x
-is positive infinity, +0 (\-0) is returned.
-.P
-If
-.I y
-is positive infinity (negative infinity), and
-.I x
-is finite,
-pi/2 (\-pi/2) is returned.
-.P
-If
-.I y
-is positive infinity (negative infinity) and
-.I x
-is negative infinity, +3*pi/4 (\-3*pi/4) is returned.
-.P
-If
-.I y
-is positive infinity (negative infinity) and
-.I x
-is positive infinity, +pi/4 (\-pi/4) is returned.
-.\"
-.\" POSIX.1 says:
-.\" If both arguments are 0, a domain error shall not occur.
-.SH ERRORS
-No errors occur.
-.\" POSIX.1 documents an optional underflow error
-.\" glibc 2.8 does not do this.
-.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 atan2 (),
-.BR atan2f (),
-.BR atan2l ()
-T} Thread safety MT-Safe
-.TE
-.SH STANDARDS
-C11, POSIX.1-2008.
-.SH HISTORY
-C99, POSIX.1-2001.
-.P
-The variant returning
-.I double
-also conforms to
-SVr4, 4.3BSD, C89.
-.SH SEE ALSO
-.BR acos (3),
-.BR asin (3),
-.BR atan (3),
-.BR carg (3),
-.BR cos (3),
-.BR sin (3),
-.BR tan (3)