Sat Nov 7 18:17:51 2015 UTC ()
Fix typo in erfl synopsis.


(nros)
diff -r1.13 -r1.14 src/lib/libm/man/erf.3
cvs diff -r1.13 -r1.14 src/lib/libm/man/erf.3 (switch to unified diff)

--- src/lib/libm/man/erf.3 2014/11/17 16:53:23 1.13
+++ src/lib/libm/man/erf.3 2015/11/07 18:17:51 1.14
@@ -1,93 +1,93 @@ @@ -1,93 +1,93 @@
1.\" Copyright (c) 1985, 1991 Regents of the University of California. 1.\" Copyright (c) 1985, 1991 Regents of the University of California.
2.\" All rights reserved. 2.\" All rights reserved.
3.\" 3.\"
4.\" Redistribution and use in source and binary forms, with or without 4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions 5.\" modification, are permitted provided that the following conditions
6.\" are met: 6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright 7.\" 1. Redistributions of source code must retain the above copyright
8.\" notice, this list of conditions and the following disclaimer. 8.\" notice, this list of conditions and the following disclaimer.
9.\" 2. Redistributions in binary form must reproduce the above copyright 9.\" 2. Redistributions in binary form must reproduce the above copyright
10.\" notice, this list of conditions and the following disclaimer in the 10.\" notice, this list of conditions and the following disclaimer in the
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12.\" 3. Neither the name of the University nor the names of its contributors 12.\" 3. Neither the name of the University nor the names of its contributors
13.\" may be used to endorse or promote products derived from this software 13.\" may be used to endorse or promote products derived from this software
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22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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26.\" SUCH DAMAGE. 26.\" SUCH DAMAGE.
27.\" 27.\"
28.\" from: @(#)erf.3 6.4 (Berkeley) 4/20/91 28.\" from: @(#)erf.3 6.4 (Berkeley) 4/20/91
29.\" $NetBSD: erf.3,v 1.13 2014/11/17 16:53:23 christos Exp $ 29.\" $NetBSD: erf.3,v 1.14 2015/11/07 18:17:51 nros Exp $
30.\" 30.\"
31.Dd November 17, 2014 31.Dd November 7, 2015
32.Dt ERF 3 32.Dt ERF 3
33.Os 33.Os
34.Sh NAME 34.Sh NAME
35.Nm erf , 35.Nm erf ,
36.Nm erff , 36.Nm erff ,
37.Nm erfl , 37.Nm erfl ,
38.Nm erfc , 38.Nm erfc ,
39.Nm erfcf , 39.Nm erfcf ,
40.Nm erfcl 40.Nm erfcl
41.Nd error function operators 41.Nd error function operators
42.Sh LIBRARY 42.Sh LIBRARY
43.Lb libm 43.Lb libm
44.Sh SYNOPSIS 44.Sh SYNOPSIS
45.In math.h 45.In math.h
46.Ft double 46.Ft double
47.Fn erf "double x" 47.Fn erf "double x"
48.Ft float 48.Ft float
49.Fn erff "float x" 49.Fn erff "float x"
50.Ft long double 50.Ft long double
51.Fn erff "long double x" 51.Fn erfl "long double x"
52.Ft double 52.Ft double
53.Fn erfc "double x" 53.Fn erfc "double x"
54.Ft float 54.Ft float
55.Fn erfcf "float x" 55.Fn erfcf "float x"
56.Ft long double 56.Ft long double
57.Fn erfcl "long double x" 57.Fn erfcl "long double x"
58.Sh DESCRIPTION 58.Sh DESCRIPTION
59These functions calculate the error function of 59These functions calculate the error function of
60.Fa x . 60.Fa x .
61.Pp 61.Pp
62The 62The
63.Fn erf 63.Fn erf
64calculates the error function of x; where 64calculates the error function of x; where
65.Bd -filled -offset indent 65.Bd -filled -offset indent
66.if n \{\ 66.if n \{\
67erf(x) = 2/sqrt(pi)\(**\|integral from 0 to x of exp(\-t\(**t) dt. \} 67erf(x) = 2/sqrt(pi)\(**\|integral from 0 to x of exp(\-t\(**t) dt. \}
68.if t \{\ 68.if t \{\
69erf\|(x) := 69erf\|(x) :=
70(2/\(sr\(*p)\|\(is\d\s8\z0\s10\u\u\s8x\s10\d\|exp(\-t\u\s82\s10\d)\|dt. \} 70(2/\(sr\(*p)\|\(is\d\s8\z0\s10\u\u\s8x\s10\d\|exp(\-t\u\s82\s10\d)\|dt. \}
71.Ed 71.Ed
72.Pp 72.Pp
73The 73The
74.Fn erfc 74.Fn erfc
75function calculates the complementary error function of 75function calculates the complementary error function of
76.Fa x ; 76.Fa x ;
77that is 77that is
78.Fn erfc 78.Fn erfc
79subtracts the result of the error function 79subtracts the result of the error function
80.Fn erf x 80.Fn erf x
81from 1.0. 81from 1.0.
82This is useful, since for large 82This is useful, since for large
83.Fa x 83.Fa x
84places disappear. 84places disappear.
85.Sh SEE ALSO 85.Sh SEE ALSO
86.Xr math 3 86.Xr math 3
87.Sh HISTORY 87.Sh HISTORY
88The 88The
89.Fn erf 89.Fn erf
90and 90and
91.Fn erfc 91.Fn erfc
92functions appeared in 92functions appeared in
93.Bx 4.3 . 93.Bx 4.3 .