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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:41:07 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:41:07 +0000 |
commit | 3af6d22bb3850ab2bac67287e3a3d3b0e32868e5 (patch) | |
tree | 3ee7a3ec64525911fa865bb984c86d997d855527 /man3/atan2.3 | |
parent | Adding debian version 6.05.01-1. (diff) | |
download | manpages-3af6d22bb3850ab2bac67287e3a3d3b0e32868e5.tar.xz manpages-3af6d22bb3850ab2bac67287e3a3d3b0e32868e5.zip |
Merging upstream version 6.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'man3/atan2.3')
-rw-r--r-- | man3/atan2.3 | 35 |
1 files changed, 17 insertions, 18 deletions
diff --git a/man3/atan2.3 b/man3/atan2.3 index 0532b47..9ac661b 100644 --- a/man3/atan2.3 +++ b/man3/atan2.3 @@ -13,7 +13,7 @@ .\" Modified 2002-07-27 by Walter Harms .\" (walter.harms@informatik.uni-oldenburg.de) .\" -.TH atan2 3 2023-07-20 "Linux man-pages 6.05.01" +.TH atan2 3 2023-10-31 "Linux man-pages 6.7" .SH NAME atan2, atan2f, atan2l \- arc tangent function of two variables .SH LIBRARY @@ -22,17 +22,17 @@ Math library .SH SYNOPSIS .nf .B #include <math.h> -.PP +.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 -.PP +.P .RS -4 Feature Test Macro Requirements for glibc (see .BR feature_test_macros (7)): .RE -.PP +.P .BR atan2f (), .BR atan2l (): .nf @@ -49,31 +49,31 @@ the quadrant of the result. 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]. -.PP +.P If .I y is +0 (\-0) and .I x is less than 0, +pi (\-pi) is returned. -.PP +.P If .I y is +0 (\-0) and .I x is greater than 0, +0 (\-0) is returned. -.PP +.P If .I y is less than 0 and .I x is +0 or \-0, \-pi/2 is returned. -.PP +.P If .I y is greater than 0 and .I x is +0 or \-0, pi/2 is returned. -.PP +.P .\" POSIX.1 says: .\" If .\" .I x @@ -84,7 +84,7 @@ If either or .I y is NaN, a NaN is returned. -.PP +.P .\" POSIX.1 says: .\" If the result underflows, a range error may occur and .\" .I y/x @@ -95,38 +95,38 @@ If is +0 (\-0) and .I x is \-0, +pi (\-pi) is returned. -.PP +.P If .I y is +0 (\-0) and .I x is +0, +0 (\-0) is returned. -.PP +.P If .I y is a finite value greater (less) than 0, and .I x is negative infinity, +pi (\-pi) is returned. -.PP +.P If .I y is a finite value greater (less) than 0, and .I x is positive infinity, +0 (\-0) is returned. -.PP +.P If .I y is positive infinity (negative infinity), and .I x is finite, pi/2 (\-pi/2) is returned. -.PP +.P If .I y is positive infinity (negative infinity) and .I x is negative infinity, +3*pi/4 (\-3*pi/4) is returned. -.PP +.P If .I y is positive infinity (negative infinity) and @@ -155,12 +155,11 @@ T{ .BR atan2l () T} Thread safety MT-Safe .TE -.sp 1 .SH STANDARDS C11, POSIX.1-2008. .SH HISTORY C99, POSIX.1-2001. -.PP +.P The variant returning .I double also conforms to |