diff options
Diffstat (limited to 'man3/lgamma.3')
-rw-r--r-- | man3/lgamma.3 | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/man3/lgamma.3 b/man3/lgamma.3 index cbcf363..cd4d57a 100644 --- a/man3/lgamma.3 +++ b/man3/lgamma.3 @@ -6,7 +6,7 @@ .\" .\" based on glibc infopages .\" -.TH lgamma 3 2023-03-30 "Linux man-pages 6.05.01" +.TH lgamma 3 2023-10-31 "Linux man-pages 6.7" .SH NAME lgamma, lgammaf, lgammal, lgamma_r, lgammaf_r, lgammal_r, signgam \- log gamma function @@ -16,30 +16,30 @@ Math library .SH SYNOPSIS .nf .B #include <math.h> -.PP +.P .BI "double lgamma(double " x ); .BI "float lgammaf(float " x ); .BI "long double lgammal(long double " x ); -.PP +.P .BI "double lgamma_r(double " x ", int *" signp ); .BI "float lgammaf_r(float " x ", int *" signp ); .BI "long double lgammal_r(long double " x ", int *" signp ); -.PP +.P .BI "extern int " signgam ; .fi -.PP +.P .RS -4 Feature Test Macro Requirements for glibc (see .BR feature_test_macros (7)): .RE -.PP +.P .nf .BR lgamma (): _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE || /* Since glibc 2.19: */ _DEFAULT_SOURCE || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE .fi -.PP +.P .BR lgammaf (), .BR lgammal (): .nf @@ -47,7 +47,7 @@ Feature Test Macro Requirements for glibc (see || /* Since glibc 2.19: */ _DEFAULT_SOURCE || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE .fi -.PP +.P .BR lgamma_r (), .BR lgammaf_r (), .BR lgammal_r (): @@ -55,7 +55,7 @@ Feature Test Macro Requirements for glibc (see /* Since glibc 2.19: */ _DEFAULT_SOURCE || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE .fi -.PP +.P .IR signgam : .nf _XOPEN_SOURCE @@ -65,7 +65,7 @@ Feature Test Macro Requirements for glibc (see .SH DESCRIPTION For the definition of the Gamma function, see .BR tgamma (3). -.PP +.P The .BR lgamma (), .BR lgammaf (), @@ -80,7 +80,7 @@ declared in .IR <math.h> . It is 1 when the Gamma function is positive or zero, \-1 when it is negative. -.PP +.P Since using a constant location .I signgam is not thread-safe, the functions @@ -92,20 +92,20 @@ have been introduced; they return the sign via the argument .IR signp . .SH RETURN VALUE On success, these functions return the natural logarithm of Gamma(x). -.PP +.P If .I x is a NaN, a NaN is returned. -.PP +.P If .I x is 1 or 2, +0 is returned. -.PP +.P If .I x is positive infinity or negative infinity, positive infinity is returned. -.PP +.P If .I x is a nonpositive integer, @@ -116,7 +116,7 @@ and the functions return or .RB + HUGE_VALL , respectively. -.PP +.P If the result overflows, a range error occurs, .\" e.g., lgamma(DBL_MAX) @@ -131,7 +131,7 @@ 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 Pole error: \fIx\fP is a nonpositive integer |