summaryrefslogtreecommitdiffstats
path: root/man3/log1p.3
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--man3/log1p.327
1 files changed, 13 insertions, 14 deletions
diff --git a/man3/log1p.3 b/man3/log1p.3
index c3285a9..dff3b5b 100644
--- a/man3/log1p.3
+++ b/man3/log1p.3
@@ -7,7 +7,7 @@
.\"
.\" Modified 2002-07-27 by Walter Harms
.\" (walter.harms@informatik.uni-oldenburg.de)
-.TH log1p 3 2023-07-20 "Linux man-pages 6.05.01"
+.TH log1p 3 2023-10-31 "Linux man-pages 6.7"
.SH NAME
log1p, log1pf, log1pl \- logarithm of 1 plus argument
.SH LIBRARY
@@ -16,17 +16,17 @@ Math library
.SH SYNOPSIS
.nf
.B #include <math.h>
-.PP
+.P
.BI "double log1p(double " x );
.BI "float log1pf(float " x );
.BI "long double log1pl(long double " x );
-.PP
+.P
.fi
.RS -4
Feature Test Macro Requirements for glibc (see
.BR feature_test_macros (7)):
.RE
-.PP
+.P
.nf
.BR log1p ():
_ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
@@ -35,7 +35,7 @@ Feature Test Macro Requirements for glibc (see
|| /* Since glibc 2.19: */ _DEFAULT_SOURCE
|| /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
.fi
-.PP
+.P
.BR log1pf (),
.BR log1pl ():
.nf
@@ -45,11 +45,11 @@ Feature Test Macro Requirements for glibc (see
.fi
.SH DESCRIPTION
These functions return a value equivalent to
-.PP
+.P
.nf
log (1 + \fIx\fP)
.fi
-.PP
+.P
The result is computed in a way
that is accurate even if the value of
.I x
@@ -57,16 +57,16 @@ is near zero.
.SH RETURN VALUE
On success, these functions return the natural logarithm of
.IR "(1\ +\ x)" .
-.PP
+.P
If
.I x
is a NaN,
a NaN is returned.
-.PP
+.P
If
.I x
is positive infinity, positive infinity is returned.
-.PP
+.P
If
.I x
is \-1, a pole error occurs,
@@ -76,7 +76,7 @@ and the functions return
or
.RB \- HUGE_VALL ,
respectively.
-.PP
+.P
If
.I x
is less than \-1 (including negative infinity),
@@ -89,7 +89,7 @@ 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
Domain error: \fIx\fP is less than \-1
@@ -125,7 +125,6 @@ T{
.BR log1pl ()
T} Thread safety MT-Safe
.TE
-.sp 1
.SH STANDARDS
C11, POSIX.1-2008.
.SH HISTORY
@@ -138,7 +137,7 @@ Before glibc 2.22, the glibc implementation did not set
to
.B EDOM
when a domain error occurred.
-.PP
+.P
Before glibc 2.22, the glibc implementation did not set
.\" https://www.sourceware.org/bugzilla/show_bug.cgi?id=6792
.I errno