describe *f in terms of the double precision version (more of this to come... after dinner).

12 files changed, 98 insertions, 41 deletions

diff --git a/lib/libm/man/acos.3 b/lib/libm/man/acos.3
index 3ff5270fcf1..7c21f6226d2 100644
--- a/lib/libm/man/acos.3
+++ b/lib/libm/man/acos.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: acos.3,v 1.7 2000/03/02 00:29:49 todd Exp $
+.\"	$OpenBSD: acos.3,v 1.8 2003/02/27 01:07:43 jason Exp $
 .\" Copyright (c) 1991 The Regents of the University of California.
 .\" All rights reserved.
 .\"
@@ -48,12 +48,14 @@
 .Sh DESCRIPTION
 The
 .Fn acos
-and
-.Fn acosf
-functions compute the principal value of the arc cosine of
+function computes the principal value of the arc cosine of
 .Fa x
 in the range
 .Bq 0 , \*(Pi .
+The
+.Fn acosf
+is a single precision version of
+.Fn acos .
 .Sh RETURN VALUES
 If |x|>1,
 .Fn acos "x"
diff --git a/lib/libm/man/acosh.3 b/lib/libm/man/acosh.3
index 82a7f51fc39..3b78f6e81cc 100644
--- a/lib/libm/man/acosh.3
+++ b/lib/libm/man/acosh.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: acosh.3,v 1.7 2000/03/02 00:29:49 todd Exp $
+.\"	$OpenBSD: acosh.3,v 1.8 2003/02/27 01:07:43 jason Exp $
 .\" Copyright (c) 1991 Regents of the University of California.
 .\" All rights reserved.
 .\"
@@ -48,12 +48,14 @@
 .Sh DESCRIPTION
 The
 .Fn acosh
-and
-.Fn acoshf
-functions compute the inverse hyperbolic cosine
+function computes the inverse hyperbolic cosine
 of the real
 argument
 .Ar x .
+The
+.Fn acoshf
+function is a single precision version of
+.Fn acosh .
 .Sh RETURN VALUES
 If x is less than one,
 .Fn acosh "x"
diff --git a/lib/libm/man/asin.3 b/lib/libm/man/asin.3
index bfd7be36c45..e384f7e6fb8 100644
--- a/lib/libm/man/asin.3
+++ b/lib/libm/man/asin.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: asin.3,v 1.7 2000/03/02 00:29:49 todd Exp $
+.\"	$OpenBSD: asin.3,v 1.8 2003/02/27 01:07:43 jason Exp $
 .\" Copyright (c) 1991 The Regents of the University of California.
 .\" All rights reserved.
 .\"
@@ -48,14 +48,16 @@
 .Sh DESCRIPTION
 The
 .Fn asin
-and
-.Fn asinf
-functions compute the principal value of the arc sine of
+function computes the principal value of the arc sine of
 .Fa x
 in the range
 .Bk -words
 .Bq -\*(Pi/2, +\*(Pi/2 .
 .Ek
+The
+.Fn asinf
+function is a single precision version of
+.Fn asin .
 .Sh RETURN VALUES
 If |x|>1,
 .Fn asin "x"
diff --git a/lib/libm/man/asinh.3 b/lib/libm/man/asinh.3
index 540e14fedec..9ceca282679 100644
--- a/lib/libm/man/asinh.3
+++ b/lib/libm/man/asinh.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: asinh.3,v 1.7 2000/03/02 00:29:49 todd Exp $
+.\"	$OpenBSD: asinh.3,v 1.8 2003/02/27 01:07:43 jason Exp $
 .\" Copyright (c) 1985, 1991 Regents of the University of California.
 .\" All rights reserved.
 .\"
@@ -48,9 +48,7 @@
 .Sh DESCRIPTION
 The
 .Fn asinh
-and
-.Fn asinhf
-functions compute the inverse hyperbolic sine
+function computes the inverse hyperbolic sine
 of the real
 argument
 .Sh RETURN VALUES
@@ -60,6 +58,10 @@ and
 .Fn asinhf
 functions return the inverse hyperbolic sine of
 .Ar x .
+The
+.Fn asinhf
+function is a single precision version of
+.Fn asinh .
 .Sh SEE ALSO
 .Xr acosh 3 ,
 .Xr atanh 3 ,
diff --git a/lib/libm/man/atan.3 b/lib/libm/man/atan.3
index ebe1120f77a..ee7656ae317 100644
--- a/lib/libm/man/atan.3
+++ b/lib/libm/man/atan.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: atan.3,v 1.7 2000/03/02 00:29:49 todd Exp $
+.\"	$OpenBSD: atan.3,v 1.8 2003/02/27 01:07:43 jason Exp $
 .\" Copyright (c) 1991 The Regents of the University of California.
 .\" All rights reserved.
 .\"
@@ -48,14 +48,16 @@
 .Sh DESCRIPTION
 The
 .Fn atan
-and
-.Fn atanf
-functions compute the principal value of the arc tangent of
+function computes the principal value of the arc tangent of
 .Fa x
 in the range
 .Bk -words
 .Bq -\*(Pi/2 , +\*(Pi/2 .
 .Ek
+The
+.Fn atanf
+function is a single precision version of
+.Fn atan .
 .Sh SEE ALSO
 .Xr acos 3 ,
 .Xr asin 3 ,
diff --git a/lib/libm/man/atan2.3 b/lib/libm/man/atan2.3
index 2e2c536eedc..f275eaa8f79 100644
--- a/lib/libm/man/atan2.3
+++ b/lib/libm/man/atan2.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: atan2.3,v 1.6 2000/03/02 00:29:49 todd Exp $
+.\"	$OpenBSD: atan2.3,v 1.7 2003/02/27 01:07:43 jason Exp $
 .\" Copyright (c) 1991 The Regents of the University of California.
 .\" All rights reserved.
 .\"
@@ -48,12 +48,14 @@
 .Sh DESCRIPTION
 The
 .Fn atan2
-and
-.Fn atan2f
-functions compute the principal value of the arc tangent of
+function computes the principal value of the arc tangent of
 .Ar y/ Ns Ar x ,
 using the signs of both arguments to determine the quadrant of
 the return value.
+The
+.Fn atan2f
+function is a single precision version of
+.Fn atan2 .
 .Sh RETURN VALUES
 The
 .Xr atan2
diff --git a/lib/libm/man/atanh.3 b/lib/libm/man/atanh.3
index 726fd30529b..70f15557188 100644
--- a/lib/libm/man/atanh.3
+++ b/lib/libm/man/atanh.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: atanh.3,v 1.7 2000/03/02 00:29:49 todd Exp $
+.\"	$OpenBSD: atanh.3,v 1.8 2003/02/27 01:07:43 jason Exp $
 .\" Copyright (c) 1985, 1991 Regents of the University of California.
 .\" All rights reserved.
 .\"
@@ -54,6 +54,10 @@ functions compute the inverse hyperbolic tangent
 of the real
 argument
 .Ar x .
+The
+.Fn atanhf
+function is a single precision version of
+.Fn atanh .
 .Sh RETURN VALUES
 If |x|>=1,
 .Fn atanh "x"
diff --git a/lib/libm/man/ceil.3 b/lib/libm/man/ceil.3
index 31c1b3365c6..27112f5a90a 100644
--- a/lib/libm/man/ceil.3
+++ b/lib/libm/man/ceil.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: ceil.3,v 1.6 2000/03/02 00:29:49 todd Exp $
+.\"	$OpenBSD: ceil.3,v 1.7 2003/02/27 01:07:43 jason Exp $
 .\" Copyright (c) 1991 The Regents of the University of California.
 .\" All rights reserved.
 .\"
@@ -48,11 +48,13 @@
 .Sh DESCRIPTION
 The
 .Fn ceil
-and
-.Fn ceilf
-functions return the smallest integral value
+function returns the smallest integral value
 greater than or equal to
 .Fa x .
+The
+.Fn ceilf
+function is a single precision version of
+.Fn ceil .
 .Sh SEE ALSO
 .Xr abs 3 ,
 .Xr fabs 3 ,
diff --git a/lib/libm/man/cosh.3 b/lib/libm/man/cosh.3
index 2c0da841de9..894758c7f51 100644
--- a/lib/libm/man/cosh.3
+++ b/lib/libm/man/cosh.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: cosh.3,v 1.6 2000/03/02 00:29:49 todd Exp $
+.\"	$OpenBSD: cosh.3,v 1.7 2003/02/27 01:07:43 jason Exp $
 .\" Copyright (c) 1989, 1991 The Regents of the University of California.
 .\" All rights reserved.
 .\"
@@ -48,10 +48,12 @@
 .Sh DESCRIPTION
 The
 .Fn cosh
-and
-.Fn coshf
-functions compute the hyperbolic cosine of
+function computes the hyperbolic cosine of
 .Fa x .
+The
+.Fn coshf
+function is a single precision version of
+.Fn cosh .
 .Sh RETURN VALUES
 If the magnitude of x is too large,
 .Fn cosh "x"
diff --git a/lib/libm/man/erf.3 b/lib/libm/man/erf.3
index 5c60a86a86d..19100381d5a 100644
--- a/lib/libm/man/erf.3
+++ b/lib/libm/man/erf.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: erf.3,v 1.8 2000/03/02 00:29:49 todd Exp $
+.\"	$OpenBSD: erf.3,v 1.9 2003/02/27 01:07:43 jason Exp $
 .\" Copyright (c) 1985, 1991 Regents of the University of California.
 .\" All rights reserved.
 .\"
@@ -57,7 +57,12 @@ These functions calculate the error function of
 .Pp
 The
 .Fn erf
-calculates the error function of x; where
+calculates the error function of x, and
+the
+.Fn erff
+function is a single precision version of
+.Fn erf .
+The error function is defined as:
 .Bd -filled -offset indent
 .if n \{\
 erf(x) = 2/sqrt(pi)\(**\|integral from 0 to x of exp(\-t\(**t) dt. \}
@@ -78,6 +83,10 @@ from 1.0.
 This is useful, since for large
 .Fa x
 places disappear.
+The
+.Fn erfcf
+function is a single precision version of
+.Fn erfc .
 .Sh SEE ALSO
 .Xr math 3
 .Sh HISTORY
diff --git a/lib/libm/man/exp.3 b/lib/libm/man/exp.3
index 7276c371bb0..62b8fcab9b1 100644
--- a/lib/libm/man/exp.3
+++ b/lib/libm/man/exp.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: exp.3,v 1.10 2000/04/15 02:15:28 aaron Exp $
+.\"	$OpenBSD: exp.3,v 1.11 2003/02/27 01:07:43 jason Exp $
 .\"
 .\" Copyright (c) 1985, 1991 Regents of the University of California.
 .\" All rights reserved.
@@ -81,28 +81,48 @@ The
 .Fn exp
 function computes the exponential value of the given argument
 .Fa x .
+The
+.Fn expf
+function is a single precision version of 
+.Fn exp .
 .Pp
 The
 .Fn expm1
 function computes the value exp(x)\-1 accurately even for tiny argument
 .Fa x .
+The
+.Fn expm1f
+function is a single precision version of
+.Fn expm1 .
 .Pp
 The
 .Fn log
 function computes the value of the natural logarithm of argument
 .Fa x .
+The
+.Fn logf
+function is a single precision version of
+.Fn log .
 .Pp
 The
 .Fn log10
 function computes the value of the logarithm of argument
 .Fa x
 to base 10.
+The
+.Fn log10f
+function is a single precision version of
+.Fn log10 .
 .Pp
 The
 .Fn log1p
 function computes
 the value of log(1+x) accurately even for tiny argument
 .Fa x .
+The
+.Fn log1pf
+function is a single precision version of
+.Fn log1p .
 .Pp
 The
 .Fn pow
@@ -111,6 +131,10 @@ of
 .Ar x
 to the exponent
 .Ar y .
+The
+.Fn powf
+function is a single precision version of
+.Fn pow .
 .Sh ERROR (due to Roundoff etc.)
 exp(x), log(x), expm1(x) and log1p(x) are accurate to within
 an
diff --git a/lib/libm/man/fabs.3 b/lib/libm/man/fabs.3
index 2684932eec0..3ef4a484cfc 100644
--- a/lib/libm/man/fabs.3
+++ b/lib/libm/man/fabs.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: fabs.3,v 1.6 2000/03/02 00:29:49 todd Exp $
+.\"	$OpenBSD: fabs.3,v 1.7 2003/02/27 01:07:43 jason Exp $
 .\" Copyright (c) 1991 The Regents of the University of California.
 .\" All rights reserved.
 .\"
@@ -49,14 +49,18 @@
 .Sh DESCRIPTION
 The
 .Fn fabs
-and
-.Fn fabsf
-functions compute the absolute value of a floating-point number
+function computes the absolute value of a floating-point number
 .Fa x .
+The
+.Fn fabsf
+function is a single precision version of
+.Fn fabs .
 .Sh RETURN VALUES
 The
 .Fn fabs
-function returns the absolute value of
+and
+.Fn fabsf
+functions return the absolute value of
 .Fa x .
 .Sh SEE ALSO
 .Xr abs 3 ,