diff options
Diffstat (limited to 'man3/atan.3')
| -rw-r--r-- | man3/atan.3 | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/man3/atan.3 b/man3/atan.3 index 5c89c62..8e86698 100644 --- a/man3/atan.3 +++ b/man3/atan.3 @@ -13,7 +13,7 @@ .\" Modified 2002-07-27 by Walter Harms .\" (walter.harms@informatik.uni-oldenburg.de) .\" -.TH atan 3 2023-07-20 "Linux man-pages 6.05.01" +.TH atan 3 2023-10-31 "Linux man-pages 6.7" .SH NAME atan, atanf, atanl \- arc tangent function .SH LIBRARY @@ -22,17 +22,17 @@ Math library .SH SYNOPSIS .nf .B #include <math.h> -.PP +.P .BI "double atan(double " x ); .BI "float atanf(float " x ); .BI "long double atanl(long double " x ); -.PP +.P .fi .RS -4 Feature Test Macro Requirements for glibc (see .BR feature_test_macros (7)): .RE -.PP +.P .BR atanf (), .BR atanl (): .nf @@ -49,16 +49,16 @@ that is the value whose tangent is On success, these functions return the principal value of the arc tangent of .I x in radians; the return value is in the range [\-pi/2,\ pi/2]. -.PP +.P If .I x is a NaN, a NaN is returned. -.PP +.P If .I x is +0 (\-0), +0 (\-0) is returned. -.PP +.P If .I x is positive infinity (negative infinity), +pi/2 (\-pi/2) is returned. @@ -83,12 +83,11 @@ T{ .BR atanl () 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 |