diff options
Diffstat (limited to 'man3/expm1.3')
| -rw-r--r-- | man3/expm1.3 | 31 |
1 files changed, 15 insertions, 16 deletions
diff --git a/man3/expm1.3 b/man3/expm1.3 index dd99ac1..32b9767 100644 --- a/man3/expm1.3 +++ b/man3/expm1.3 @@ -8,7 +8,7 @@ .\" Modified 2002-07-27 Walter Harms .\" (walter.harms@informatik.uni-oldenburg.de) .\" -.TH expm1 3 2023-07-20 "Linux man-pages 6.05.01" +.TH expm1 3 2023-10-31 "Linux man-pages 6.7" .SH NAME expm1, expm1f, expm1l \- exponential minus 1 .SH LIBRARY @@ -17,17 +17,17 @@ Math library .SH SYNOPSIS .nf .B #include <math.h> -.PP +.P .BI "double expm1(double " x ); .BI "float expm1f(float " x ); .BI "long double expm1l(long double " x ); -.PP +.P .fi .RS -4 Feature Test Macro Requirements for glibc (see .BR feature_test_macros (7)): .RE -.PP +.P .BR expm1 (): .nf _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L @@ -36,7 +36,7 @@ Feature Test Macro Requirements for glibc (see || /* Since glibc 2.19: */ _DEFAULT_SOURCE || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE .fi -.PP +.P .BR expm1f (), .BR expm1l (): .nf @@ -46,11 +46,11 @@ Feature Test Macro Requirements for glibc (see .fi .SH DESCRIPTION These functions return a value equivalent to -.PP +.P .nf exp(x) \- 1 .fi -.PP +.P The result is computed in a way that is accurate even if the value of .I x is near @@ -61,25 +61,25 @@ subtraction of two numbers that are nearly equal. .SH RETURN VALUE On success, these functions return .IR "exp(x)\ \-\ 1" . -.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, positive infinity is returned. -.PP +.P If .I x is negative infinity, \-1 is returned. -.PP +.P If the result overflows, a range error occurs, and the functions return .RB \- HUGE_VAL , @@ -92,7 +92,7 @@ See .BR math_error (7) for information on how to determine whether an error has occurred when calling these functions. -.PP +.P The following errors can occur: .TP Range error, overflow @@ -122,7 +122,6 @@ T{ .BR expm1l () T} Thread safety MT-Safe .TE -.sp 1 .SH STANDARDS C11, POSIX.1-2008. .SH HISTORY @@ -137,7 +136,7 @@ raised a bogus underflow floating-point exception for some large negative .I x values (where the function result approaches \-1). -.PP +.P Before approximately glibc 2.11, .\" https://www.sourceware.org/bugzilla/show_bug.cgi?id=6814 .\" e.g., expm1(1e5) through expm1(1.00199970127e5), @@ -148,7 +147,7 @@ overflow exception, and returned a NaN instead of positive infinity, for some large positive .I x values. -.PP +.P Before glibc 2.11, .\" It looks like the fix was in glibc 2.11, or possibly glibc 2.12. .\" I have no test system for glibc 2.11, but glibc 2.12 passes. |