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-rw-r--r--man3/pow.361
1 files changed, 30 insertions, 31 deletions
diff --git a/man3/pow.3 b/man3/pow.3
index 3f0be5c..83fd8fb 100644
--- a/man3/pow.3
+++ b/man3/pow.3
@@ -13,7 +13,7 @@
.\" Modified 1995-08-14 by Arnt Gulbrandsen <agulbra@troll.no>
.\" Modified 2002-07-27 by Walter Harms
.\" (walter.harms@informatik.uni-oldenburg.de)
-.TH pow 3 2023-07-20 "Linux man-pages 6.05.01"
+.TH pow 3 2023-10-31 "Linux man-pages 6.7"
.SH NAME
pow, powf, powl \- power functions
.SH LIBRARY
@@ -22,17 +22,17 @@ Math library
.SH SYNOPSIS
.nf
.B #include <math.h>
-.PP
+.P
.BI "double pow(double " x ", double " y );
.BI "float powf(float " x ", float " y );
.BI "long double powl(long double " x ", long double " y );
.fi
-.PP
+.P
.RS -4
Feature Test Macro Requirements for glibc (see
.BR feature_test_macros (7)):
.RE
-.PP
+.P
.BR powf (),
.BR powl ():
.nf
@@ -51,7 +51,7 @@ On success, these functions return the value of
.I x
to the power of
.IR y .
-.PP
+.P
If the result overflows,
a range error occurs,
.\" The range error is generated at least as far back as glibc 2.4
@@ -61,14 +61,14 @@ and the functions return
or
.BR HUGE_VALL ,
respectively, with the mathematically correct sign.
-.PP
+.P
If result underflows, and is not representable,
a range error occurs,
and 0.0 with the appropriate sign is returned.
.\" POSIX.1 does not specify the sign of the zero,
.\" but https://www.sourceware.org/bugzilla/show_bug.cgi?id=2678
.\" points out that the zero has the wrong sign in some cases.
-.PP
+.P
.\" pow(\(+-0, <0 [[odd]]) = HUGE_VAL*
If
.I x
@@ -84,7 +84,7 @@ or
is returned,
with the same sign as
.IR x .
-.PP
+.P
.\" pow(\(+-0, <0 [[!odd]]) = HUGE_VAL*
If
.I x
@@ -99,7 +99,7 @@ a pole error occurs and
or
.RB + HUGE_VALL ,
is returned.
-.PP
+.P
.\" pow(\(+-0, >0 [[odd]]) = \(+-0
If
.I x
@@ -108,7 +108,7 @@ and
.I y
is an odd integer greater than 0,
the result is +0 (\-0).
-.PP
+.P
.\" pow(\(+-0, >0 [[!odd]]) = +0
If
.I x
@@ -117,7 +117,7 @@ and
.I y
greater than 0 and not an odd integer,
the result is +0.
-.PP
+.P
.\" pow(-1, \(+-INFINITY) = 1.0
If
.I x
@@ -126,21 +126,21 @@ and
.I y
is positive infinity or negative infinity,
the result is 1.0.
-.PP
+.P
.\" pow(+1, y) = 1.0
If
.I x
is +1, the result is 1.0 (even if
.I y
is a NaN).
-.PP
+.P
.\" pow(x, \(+-0) = 1.0
If
.I y
is 0, the result is 1.0 (even if
.I x
is a NaN).
-.PP
+.P
.\" pow(<0, y) = NaN
If
.I x
@@ -149,7 +149,7 @@ is a finite value less than 0, and
is a finite noninteger, a domain error occurs,
.\" The domain error is generated at least as far back as glibc 2.4
and a NaN is returned.
-.PP
+.P
.\" pow(|x|<1, -INFINITY) = INFINITY
If the absolute value of
.I x
@@ -158,7 +158,7 @@ and
.I y
is negative infinity,
the result is positive infinity.
-.PP
+.P
.\" pow(|x|>1, -INFINITY) = +0
If the absolute value of
.I x
@@ -167,7 +167,7 @@ and
.I y
is negative infinity,
the result is +0.
-.PP
+.P
.\" pow(|x|<1, INFINITY) = +0
If the absolute value of
.I x
@@ -176,7 +176,7 @@ and
.I y
is positive infinity,
the result is +0.
-.PP
+.P
.\" pow(|x|>1, INFINITY) = INFINITY
If the absolute value of
.I x
@@ -185,7 +185,7 @@ and
.I y
is positive infinity,
the result is positive infinity.
-.PP
+.P
.\" pow(-INFINITY, <0 [[odd]]) = -0
If
.I x
@@ -194,7 +194,7 @@ and
.I y
is an odd integer less than 0,
the result is \-0.
-.PP
+.P
.\" pow(-INFINITY, <0 [[!odd]]) = +0
If
.I x
@@ -203,7 +203,7 @@ and
.I y
less than 0 and not an odd integer,
the result is +0.
-.PP
+.P
.\" pow(-INFINITY, >0 [[odd]]) = -INFINITY
If
.I x
@@ -212,7 +212,7 @@ and
.I y
is an odd integer greater than 0,
the result is negative infinity.
-.PP
+.P
.\" pow(-INFINITY, >0 [[!odd]]) = INFINITY
If
.I x
@@ -221,7 +221,7 @@ and
.I y
greater than 0 and not an odd integer,
the result is positive infinity.
-.PP
+.P
.\" pow(INFINITY, <0) = +0
If
.I x
@@ -230,7 +230,7 @@ and
.I y
less than 0,
the result is +0.
-.PP
+.P
.\" pow(INFINITY, >0) = INFINITY
If
.I x
@@ -239,7 +239,7 @@ and
.I y
greater than 0,
the result is positive infinity.
-.PP
+.P
.\" pow(NaN, y) or pow(x, NaN) = NaN
Except as specified above, if
.I x
@@ -271,7 +271,7 @@ 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 negative, and \fIy\fP is a finite noninteger
@@ -322,12 +322,11 @@ T{
.BR powl ()
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
@@ -349,13 +348,13 @@ nor
This problem was fixed
.\" commit c3d466cba1692708a19c6ff829d0386c83a0c6e5
in glibc 2.28.
-.PP
+.P
A number of bugs
.\" https://www.sourceware.org/bugzilla/show_bug.cgi?id=3866
in the glibc implementation of
.BR pow ()
were fixed in glibc 2.16.
-.PP
+.P
In glibc 2.9 and earlier,
.\"
.\" https://www.sourceware.org/bugzilla/show_bug.cgi?id=6776
@@ -369,7 +368,7 @@ Since glibc 2.10,
.\" or possibly 2.9, I haven't found the source code change
.\" and I don't have a 2.9 system to test
glibc does the right thing.
-.PP
+.P
In glibc 2.3.2 and earlier,
.\" Actually, glibc 2.3.2 is the earliest test result I have; so yet
.\" to confirm if this error occurs only in glibc 2.3.2.