Additions from Thomas Graichen to mention each functions' floating point

counterpart.
Submitted by:	Thomas Graichen <graichen@sirius.physik.fu-berlin.de>

27 files changed, 440 insertions, 159 deletions

diff --git a/lib/msun/man/acos.3 b/lib/msun/man/acos.3
index 6961a60..d7e75c6 100644
--- a/lib/msun/man/acos.3
+++ b/lib/msun/man/acos.3
@@ -30,22 +30,27 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)acos.3	5.1 (Berkeley) 5/2/91
-.\"	$Id: acos.3,v 1.4 1993/10/29 22:57:17 jtc Exp $
+.\"	$Id: acos.3,v 1.1.1.1 1994/08/19 09:39:41 jkh Exp $
 .\"
 .Dd May 2, 1991
 .Dt ACOS 3
 .Os
 .Sh NAME
-.Nm acos
-.Nd arc cosine function
+.Nm acos ,
+.Nm acosf
+.Nd arc cosine functions
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn acos "double x"
+.Ft float
+.Fn acosf "float x"
 .Sh DESCRIPTION
 The
 .Fn acos
-function computes the principal value of the arc cosine of
+and the
+.Fn acosf
+functions compute the principal value of the arc cosine of
 .Fa x .
 A domain error occurs for arguments not in the range [-1, +1].
 For a discussion of error due to roundoff, see
@@ -53,7 +58,9 @@ For a discussion of error due to roundoff, see
 .Sh RETURN VALUES
 The 
 .Fn acos
-function returns the arc cosine in the range
+and the
+.Fn acosf
+functions return the arc cosine in the range
 .Bq 0 , \*(Pi
 radians.
 On the
diff --git a/lib/msun/man/acosh.3 b/lib/msun/man/acosh.3
index 3b05dd3..f72478d 100644
--- a/lib/msun/man/acosh.3
+++ b/lib/msun/man/acosh.3
@@ -30,22 +30,27 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)acosh.3	5.2 (Berkeley) 5/6/91
-.\"	$Id: acosh.3,v 1.4 1993/10/29 22:57:20 jtc Exp $
+.\"	$Id: acosh.3,v 1.1.1.1 1994/08/19 09:39:41 jkh Exp $
 .\"
 .Dd May 6, 1991
 .Dt ACOSH 3
 .Os BSD 4.3
 .Sh NAME
-.Nm acosh
-.Nd inverse hyperbolic cosine function
+.Nm acosh ,
+.Nm acoshf
+.Nd inverse hyperbolic cosine functions
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn acosh "double x"
+.Ft float
+.Fn acoshf "float x"
 .Sh DESCRIPTION
 The
 .Fn acosh
-function computes the inverse hyperbolic cosine
+and the 
+.Fn acoshf
+functions compute the inverse hyperbolic cosine
 of the real
 argument
 .Ar x .
@@ -54,8 +59,10 @@ For a discussion of error due to roundoff, see
 .Sh RETURN VALUES
 The
 .Fn acosh
-function
-returns the inverse hyperbolic cosine of
+and the 
+.Fn acoshf
+functions
+return the inverse hyperbolic cosine of
 .Ar x .
 On the
 .Tn VAX
diff --git a/lib/msun/man/asin.3 b/lib/msun/man/asin.3
index 3624d78..ebbdd0f 100644
--- a/lib/msun/man/asin.3
+++ b/lib/msun/man/asin.3
@@ -30,22 +30,27 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)asin.3	5.1 (Berkeley) 5/2/91
-.\"	$Id: asin.3,v 1.4 1993/10/29 22:57:22 jtc Exp $
+.\"	$Id: asin.3,v 1.1.1.1 1994/08/19 09:39:41 jkh Exp $
 .\"
 .Dd May 2, 1991
 .Dt ASIN 3
 .Os
 .Sh NAME
-.Nm asin
-.Nd arc sine function
+.Nm asin ,
+.Nm asinf
+.Nd arc sine functions
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn asin "double  x"
+.Ft float
+.Fn asinf "float  x"
 .Sh DESCRIPTION
 The
 .Fn asin
-function computes the principal value of the arc sine of
+and the 
+.Fn asinf
+functions compute the principal value of the arc sine of
 .Fa x .
 A domain error occurs for arguments not in the range [-1, +1].
 For a discussion of error due to roundoff, see
@@ -53,7 +58,9 @@ For a discussion of error due to roundoff, see
 .Sh RETURN VALUES
 The
 .Fn asin
-function returns the arc sine in the range
+and the 
+.Fn asinf
+functions return the arc sine in the range
 .Bk -words
 .Bq -\*(Pi/2, +\*(Pi/2
 .Ek
diff --git a/lib/msun/man/asinh.3 b/lib/msun/man/asinh.3
index 01b62bf..f24a60c 100644
--- a/lib/msun/man/asinh.3
+++ b/lib/msun/man/asinh.3
@@ -30,22 +30,27 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)asinh.3	6.4 (Berkeley) 5/6/91
-.\"	$Id: asinh.3,v 1.4 1993/10/29 22:57:23 jtc Exp $
+.\"	$Id: asinh.3,v 1.1.1.1 1994/08/19 09:39:41 jkh Exp $
 .\"
 .Dd May 6, 1991
 .Dt ASINH 3
 .Os BSD 4.3
 .Sh NAME
-.Nm asinh
-.Nd inverse hyperbolic sine function
+.Nm asinh ,
+.Nm asinhf
+.Nd inverse hyperbolic sine functions
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn asinh "double x"
+.Ft float
+.Fn asinhf "float x"
 .Sh DESCRIPTION
 The
 .Fn asinh
-function computes the inverse hyperbolic sine
+and the 
+.Fn asinhf
+functions compute the inverse hyperbolic sine
 of the real
 argument
 .Ar x .
@@ -54,8 +59,10 @@ For a discussion of error due to roundoff, see
 .Sh RETURN VALUES
 The
 .Fn asinh
-function
-returns the inverse hyperbolic sine of
+and the 
+.Fn asinhf
+functions
+return the inverse hyperbolic sine of
 .Ar x .
 .Sh SEE ALSO
 .Xr acosh 3 ,
diff --git a/lib/msun/man/atan.3 b/lib/msun/man/atan.3
index d698c49..c795351 100644
--- a/lib/msun/man/atan.3
+++ b/lib/msun/man/atan.3
@@ -30,28 +30,35 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)atan.3	5.1 (Berkeley) 5/2/91
-.\"	$Id: atan.3,v 1.4 1993/10/04 18:07:15 jtc Exp $
+.\"	$Id: atan.3,v 1.1.1.1 1994/08/19 09:39:41 jkh Exp $
 .\"
 .Dd May 2, 1991
 .Dt ATAN 3
 .Os
 .Sh NAME
-.Nm atan
-.Nd arc tangent function of one variable
+.Nm atan ,
+.Nm atanf
+.Nd arc tangent functions of one variable
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn atan "double x"
+.Ft float
+.Fn atanf "float x"
 .Sh DESCRIPTION
 The
 .Fn atan
-function computes the principal value of the arc tangent of
+and the
+.Fn atanf
+functions compute the principal value of the arc tangent of
 .Fa x .
 For a discussion of error due to roundoff, see
 .Xr math 3 .
 .Sh RETURN VALUES
 The
 .Fn atan
+and the 
+.Fn atanf
 function returns the arc tangent in the range
 .Bk -words
 .Bq -\*(Pi/2 , +\*(Pi/2
diff --git a/lib/msun/man/atan2.3 b/lib/msun/man/atan2.3
index 79b0277..72c3588 100644
--- a/lib/msun/man/atan2.3
+++ b/lib/msun/man/atan2.3
@@ -30,40 +30,47 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)atan2.3	5.1 (Berkeley) 5/2/91
-.\"	$Id: atan2.3,v 1.3 1993/08/14 13:42:32 mycroft Exp $
+.\"	$Id: atan2.3,v 1.1.1.1 1994/08/19 09:39:41 jkh Exp $
 .\"
 .Dd May 2, 1991
 .Dt ATAN2 3
 .Os
 .Sh NAME
-.Nm atan2
-.Nd arc tangent function of two variables
+.Nm atan2 ,
+.Nm atan2f
+.Nd arc tangent functions of two variables
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn atan2 "double y" "double x"
+.Ft float
+.Fn atan2f "float y" "float x"
 .Sh DESCRIPTION
 The
-.Xr atan2
-function computes the principal value of the arc tangent of
-.Ar y/ Ns Ar x ,
+.Fn atan2
+and the
+.Fn atan2f
+functions compute the principal value of the arc tangent of
+.Fa y/ Ns Ar x ,
 using the signs of both arguments to determine the quadrant of
 the return value.
 .Sh RETURN VALUES
 The
-.Xr atan2
-function, if successful,
-returns the arc tangent of 
-.Ar y/ Ns Ar x
+.Fn atan2
+and the
+.Fn atan2f
+functions, if successful,
+return the arc tangent of 
+.Fa y/ Ns Ar x
 in the range
 .Bk -words
 .Bq \&- Ns \*(Pi , \&+ Ns \*(Pi
 .Ek
 radians.
 If both
-.Ar x
+.Fa x
 and
-.Ar y
+.Fa y
 are zero, the global variable
 .Va errno
 is set to
diff --git a/lib/msun/man/atanh.3 b/lib/msun/man/atanh.3
index 51318bc..8b62d6b 100644
--- a/lib/msun/man/atanh.3
+++ b/lib/msun/man/atanh.3
@@ -30,22 +30,27 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)atanh.3	5.2 (Berkeley) 5/6/91
-.\"	$Id: atanh.3,v 1.4 1993/10/29 22:57:24 jtc Exp $
+.\"	$Id: atanh.3,v 1.1.1.1 1994/08/19 09:39:42 jkh Exp $
 .\"
 .Dd May 6, 1991
 .Dt ATANH 3
 .Os BSD 4.3
 .Sh NAME
-.Nm atanh
-.Nd inverse hyperbolic tangent function
+.Nm atanh ,
+.Nm atanhf
+.Nd inverse hyperbolic tangent functions
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn atanh "double x"
+.Ft float
+.Fn atanhf "float x"
 .Sh DESCRIPTION
 The
 .Fn  atanh
-function computes the inverse hyperbolic tangent
+and the 
+.Fn  atanhf
+functions compute the inverse hyperbolic tangent
 of the real
 argument
 .Ar x .
@@ -54,8 +59,10 @@ For a discussion of error due to roundoff, see
 .Sh RETURN VALUES
 The
 .Fn atanh
-function
-returns the inverse hyperbolic tangent of
+and the 
+.Fn atanhf
+functions
+return the inverse hyperbolic tangent of
 .Ar x
 if successful.
 On the
diff --git a/lib/msun/man/ceil.3 b/lib/msun/man/ceil.3
index 0cfc7ef..c8a1f02 100644
--- a/lib/msun/man/ceil.3
+++ b/lib/msun/man/ceil.3
@@ -30,22 +30,27 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)ceil.3	5.1 (Berkeley) 5/2/91
-.\"	$Id: ceil.3,v 1.6 1994/03/11 01:32:08 jtc Exp $
+.\"	$Id: ceil.3,v 1.1.1.1 1994/08/19 09:39:42 jkh Exp $
 .\"
 .Dd March 10, 1994
 .Dt CEIL 3
 .Os
 .Sh NAME
-.Nm ceil
+.Nm ceil ,
+.Nm ceilf
 .Nd round to smallest integral value not greater than x
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn ceil "double x"
+.Ft float
+.Fn ceil "float x"
 .Sh DESCRIPTION
 The
 .Fn ceil
-function returns the smallest integral value
+and the
+.Fn ceilf
+functions return the smallest integral value
 (represented as a double precision number)
 greater than or equal to
 .Fa x .
diff --git a/lib/msun/man/cos.3 b/lib/msun/man/cos.3
index b53c006..e449600 100644
--- a/lib/msun/man/cos.3
+++ b/lib/msun/man/cos.3
@@ -30,22 +30,27 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)cos.3	5.1 (Berkeley) 5/2/91
-.\"	$Id: cos.3,v 1.5 1993/10/29 22:57:25 jtc Exp $
+.\"	$Id: cos.3,v 1.1.1.1 1994/08/19 09:39:42 jkh Exp $
 .\"
 .Dd May 2, 1991
 .Dt COS 3
 .Os
 .Sh NAME
-.Nm cos
-.Nd cosine function
+.Nm cos ,
+.Nm cosf
+.Nd cosine functions
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn cos "double x"
+.Ft float
+.Fn cos "float x"
 .Sh DESCRIPTION
 The
 .Fn cos
-function computes the cosine of
+and the
+.Fn cosf
+functions compute the cosine of
 .Fa x
 (measured in radians).
 A large magnitude argument may yield a result with little or no 
@@ -55,7 +60,9 @@ For a discussion of error due to roundoff, see
 .Sh RETURN VALUES
 The
 .Fn cos
-function returns the cosine value.
+and the 
+.Fn cosf
+functions return the cosine value.
 .Sh SEE ALSO
 .Xr sin 3 ,
 .Xr tan 3 ,
diff --git a/lib/msun/man/cosh.3 b/lib/msun/man/cosh.3
index 33cc949..8944381 100644
--- a/lib/msun/man/cosh.3
+++ b/lib/msun/man/cosh.3
@@ -30,27 +30,34 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)cosh.3	5.1 (Berkeley) 5/2/91
-.\"	$Id: cosh.3,v 1.4 1993/10/29 22:57:26 jtc Exp $
+.\"	$Id: cosh.3,v 1.1.1.1 1994/08/19 09:39:42 jkh Exp $
 .\"
 .Dd May 2, 1991
 .Dt COSH 3
 .Os
 .Sh NAME
-.Nm cosh
-.Nd hyperbolic cosine function
+.Nm cosh ,
+.Nm coshf
+.Nd hyperbolic cosine functions
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn cosh "double x"
+.Ft float
+.Fn cosh "float x"
 .Sh DESCRIPTION
 The
 .Fn cosh
-function computes the hyperbolic cosine of
+and the 
+.Fn coshf
+functions compute the hyperbolic cosine of
 .Fa x .
 .Sh RETURN VALUES
 The
 .Fn cosh
-function returns the hyperbolic cosine unless the magnitude
+and the
+.Fn coshf
+functions return the hyperbolic cosine unless the magnitude
 of
 .Fa x
 is too large; in this event, the global variable
diff --git a/lib/msun/man/erf.3 b/lib/msun/man/erf.3
index b23dee7..030ca6a 100644
--- a/lib/msun/man/erf.3
+++ b/lib/msun/man/erf.3
@@ -30,28 +30,36 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)erf.3	6.4 (Berkeley) 4/20/91
-.\"	$Id: erf.3,v 1.3 1993/08/14 13:42:38 mycroft Exp $
+.\"	$Id: erf.3,v 1.1.1.1 1994/08/19 09:39:42 jkh Exp $
 .\"
 .Dd April 20, 1991
 .Dt ERF 3
 .Os BSD 4.3
 .Sh NAME
 .Nm erf ,
-.Nm erfc
+.Nm erff ,
+.Nm erfc ,
+.Nm erfcf
 .Nd error function operators
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn erf "double x"
+.Ft float
+.Fn erff "float x"
 .Ft double
 .Fn erfc "double x"
+.Ft float
+.Fn erfcf "float x"
 .Sh DESCRIPTION
 These functions calculate the error function of
 .Fa x .
 .Pp
 The
 .Fn erf
-calculates the error function of x; where
+and the 
+.Fn erff
+functions calculate the error function of x; where
 .Bd -filled -offset indent
 .if n \{\
 erf(x) = 2/sqrt(pi)\(**\|integral from 0 to x of exp(\-t\(**t) dt. \}
@@ -62,7 +70,9 @@ erf\|(x) :=
 .Pp
 The
 .Fn erfc
-function calculates the complementary error function of
+and the 
+.Fn erfcf
+functions calculate the complementary error function of
 .Fa x ;
 that is
 .Fn erfc
diff --git a/lib/msun/man/exp.3 b/lib/msun/man/exp.3
index 52f64fd..8a25ff2 100644
--- a/lib/msun/man/exp.3
+++ b/lib/msun/man/exp.3
@@ -30,73 +30,110 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)exp.3	6.12 (Berkeley) 7/31/91
-.\"	$Id: exp.3,v 1.7 1994/02/11 18:34:05 jtc Exp $
+.\"	$Id: exp.3,v 1.1.1.1 1994/08/19 09:39:42 jkh Exp $
 .\"
 .Dd July 31, 1991
 .Dt EXP 3
 .Os BSD 4
 .Sh NAME
 .Nm exp ,
+.Nm expf ,
 .Nm exp2 ,
+.Nm exp2f ,
 .Nm exp10 ,
+.Nm exp10f ,
 .Nm expm1 ,
+.Nm expm1f ,
 .Nm log ,
+.Nm logf ,
 .Nm log2 ,
+.Nm log2f ,
 .Nm log10 ,
+.Nm log10f ,
 .Nm log1p ,
-.Nm pow
+.Nm log1pf ,
+.Nm pow ,
+.Nm powf
 .Nd exponential, logarithm, power functions
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn exp "double x"
+.Ft float
+.Fn expf "float x"
 .Ft double
 .Fn expm1 "double x"
+.Ft float
+.Fn expm1f "float x"
 .Ft double
 .Fn log "double x"
+.Ft float
+.Fn logf "float x"
 .Ft double
 .Fn log10 "double x"
+.Ft float
+.Fn log10f "float x"
 .Ft double
 .Fn log1p "double x"
+.Ft float
+.Fn log1pf "float x"
 .Ft double
 .Fn pow "double x" "double y"
+.Ft float
+.Fn powf "float x" "float y"
 .Sh DESCRIPTION
 The
 .Fn exp
-function computes the exponential value of the given argument
+and the
+.Fn expf
+functions compute the exponential value of the given argument
 .Fa x .
 .Pp
 The
 .Fn expm1
-function computes the value exp(x)\-1 accurately even for tiny argument
+and the 
+.Fn expm1f
+functions compute the value exp(x)\-1 accurately even for tiny argument
 .Fa x .
 .Pp
 The
 .Fn log
-function computes the value of the natural logarithm of argument 
+and the
+.Fn logf
+functions compute the value of the natural logarithm of argument 
 .Fa x.
 .Pp
 The
 .Fn log10
-function computes the value of the logarithm of argument
+and the
+.Fn log10f
+functions compute the value of the logarithm of argument
 .Fa x
 to base 10.
 .Pp
 The
 .Fn log1p
-function computes
+and the
+.Fn log1pf
+functions compute
 the value of log(1+x) accurately even for tiny argument
 .Fa x .
 .Pp
 The
 .Fn pow
-computes the value
+and the
+.Fn powf
+functions compute the value
 of
 .Ar x
 to the exponent
 .Ar y .
 .Sh ERROR (due to Roundoff etc.)
-exp(x), log(x), expm1(x) and log1p(x) are accurate to within 
+.Fn exp(x) ,
+.Fn log(x) ,
+.Fn expm1(x) and
+.Fn log1p(x)
+are accurate to within 
 an
 .Em ulp ,
 and log10(x) to within about 2
@@ -145,8 +182,7 @@ These functions will return the appropriate computation unless an error
 occurs or an argument is out of range.
 The functions
 .Fn exp ,
-.Fn expm1
-and
+.Fn expm1 ,
 .Fn pow
 detect if the computed value will overflow,
 set the global variable
@@ -156,7 +192,7 @@ and cause a reserved operand fault on a
 .Tn VAX
 or
 .Tn Tahoe .
-The function
+The functions
 .Fn pow x y
 checks to see if
 .Fa x
diff --git a/lib/msun/man/fabs.3 b/lib/msun/man/fabs.3
index 58d4400..9c8b00b 100644
--- a/lib/msun/man/fabs.3
+++ b/lib/msun/man/fabs.3
@@ -31,27 +31,34 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)fabs.3	5.1 (Berkeley) 5/2/91
-.\"	$Id: fabs.3,v 1.4 1993/10/04 18:04:34 jtc Exp $
+.\"	$Id: fabs.3,v 1.1.1.1 1994/08/19 09:39:42 jkh Exp $
 .\"
 .Dd May 2, 1991
 .Dt FABS 3
 .Os
 .Sh NAME
-.Nm fabs
-.Nd floating-point absolute value function
+.Nm fabs ,
+.Nm fabsf
+.Nd floating-point absolute value functions
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn fabs "double x"
+.Ft float
+.Fn fabsf "float x"
 .Sh DESCRIPTION
 The
 .Fn fabs
-function computes the absolute value of a floating-point number
+and the
+.Fn fabsf
+functions compute the absolute value of a floating-point number
 .Fa x .
 .Sh RETURN VALUES
 The
 .Fn fabs
-function returns the absolute value of
+and the
+.Fn fabsf
+functions return the absolute value of
 .Fa x .
 .Sh SEE ALSO
 .Xr abs 3 ,
diff --git a/lib/msun/man/floor.3 b/lib/msun/man/floor.3
index bda6bf8..480862a 100644
--- a/lib/msun/man/floor.3
+++ b/lib/msun/man/floor.3
@@ -30,21 +30,26 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)floor.3	6.5 (Berkeley) 4/19/91
-.\"	$Id: floor.3,v 1.5 1994/03/11 01:32:10 jtc Exp $
+.\"	$Id: floor.3,v 1.1.1.1 1994/08/19 09:39:42 jkh Exp $
 .\"
 .Dd March 10, 1994
 .Dt FLOOR 3
 .Os
 .Sh NAME
-.Nm floor
+.Nm floor ,
+.Nm floorf
 .Nd round to largest integral value not greater than x
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn floor "double x"
+.Ft float
+.Fn floorf "float x"
 .Sh DESCRIPTION
 The
 .Fn floor
+and the
+.Fn floorf
 function returns the largest integral value 
 (represented as a double precision number)
 less than or equal to
diff --git a/lib/msun/man/fmod.3 b/lib/msun/man/fmod.3
index 5152602..60a8489 100644
--- a/lib/msun/man/fmod.3
+++ b/lib/msun/man/fmod.3
@@ -30,27 +30,34 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)fmod.3	5.1 (Berkeley) 5/2/91
-.\"	$Id: fmod.3,v 1.3 1993/08/14 13:42:46 mycroft Exp $
+.\"	$Id: fmod.3,v 1.1.1.1 1994/08/19 09:39:42 jkh Exp $
 .\"
 .Dd May 2, 1991
 .Dt FMOD 3
 .Os
 .Sh NAME
-.Nm fmod
-.Nd floating-point remainder function
+.Nm fmod ,
+.Nm fmodf
+.Nd floating-point remainder functions
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn fmod "double x" "double y"
+.Ft float
+.Fn fmodf "float x" "float y"
 .Sh DESCRIPTION
 The
 .Fn fmod
-function computes the floating-point remainder of
+and the
+.Fn fmodf
+functions compute the floating-point remainder of
 .Fa x Ns / Fa y .
 .Sh RETURN VALUES
 The
 .Fn fmod
-function returns the value
+and the
+.Fn fmodf
+functions return the value
 .Sm off
 .Fa x - Em i * Fa y ,
 .Sm on
@@ -66,6 +73,8 @@ If
 .Fa y
 is zero, whether a domain error occurs or the
 .Fn fmod
+and the
+.Fn fmodf
 function returns zero is implementation-defined.
 .Sh SEE ALSO
 .Xr math 3
diff --git a/lib/msun/man/hypot.3 b/lib/msun/man/hypot.3
index 0098170..09d0da0 100644
--- a/lib/msun/man/hypot.3
+++ b/lib/msun/man/hypot.3
@@ -30,29 +30,38 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)hypot.3	6.7 (Berkeley) 5/6/91
-.\"	$Id: hypot.3,v 1.3 1993/08/14 13:42:48 mycroft Exp $
+.\"	$Id: hypot.3,v 1.1.1.1 1994/08/19 09:39:42 jkh Exp $
 .\"
 .Dd May 6, 1991
 .Dt HYPOT 3
 .Os BSD 4
 .Sh NAME
 .Nm hypot ,
-.Nm cabs
+.Nm hypotf ,
+.Nm cabs ,
+.Nm cabsf
 .Nd euclidean distance and complex absolute value functions
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn hypot "double x" "double y"
+.Ft float
+.Fn hypotf "float x" "float y"
 .Fd struct {double x, y;} z;
 .Ft double
 .Fn cabs z
+.Fd struct {float x, y;} z;
+.Ft float
+.Fn cabsf z
 .Sh DESCRIPTION
 The
-.Fn hypot
-and
+.Fn hypot ,
+.Fn hypotf ,
 .Fn cabs
+and
+.Fn cabsf
 functions
-computes the
+compute the
 sqrt(x*x+y*y)
 in such a way that underflow will not happen, and overflow
 occurs only if the final result deserves it.
diff --git a/lib/msun/man/ieee.3 b/lib/msun/man/ieee.3
index e8b1583..bdd23cd 100644
--- a/lib/msun/man/ieee.3
+++ b/lib/msun/man/ieee.3
@@ -30,45 +30,67 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)ieee.3	6.4 (Berkeley) 5/6/91
-.\"	$Id: ieee.3,v 1.7 1994/03/10 18:15:07 jtc Exp $
+.\"	$Id: ieee.3,v 1.1.1.1 1994/08/19 09:39:42 jkh Exp $
 .\"
 .Dd Feb 25, 1994
 .Dt IEEE 3
 .Os
 .Sh NAME
 .Nm copysign ,
+.Nm copysignf ,
 .Nm finite ,
+.Nm finitef ,
 .Nm ilogb ,
+.Nm ilogbf ,
 .Nm nextafter ,
+.Nm nextafterf ,
 .Nm remainder ,
-.Nm scalbn
+.Nm remainderf ,
+.Nm scalbn ,
+.Nm scalbnf
 .Nd Functions for IEEE arithmetic
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double 
 .Fn copysign "double x" "double y"
+.Ft float 
+.Fn copysignf "float x" "float y"
 .Ft int 
 .Fn finite "double x"
+.Ft int 
+.Fn finitef "float x"
 .Ft int
 .Fn ilogb "double x"
+.Ft int
+.Fn ilogbf "float x"
 .Ft double 
 .Fn nextafter "double x" "double y"
+.Ft float
+.Fn nextafterf "float x" "float y"
 .Ft double
 .Fn remainder "double x" "double y"
+.Ft float
+.Fn remainderf "float x" "float y"
 .Ft double 
 .Fn scalbn "double x" "int n"
+.Ft float 
+.Fn scalbnf "float x" "int n"
 .Sh DESCRIPTION
 These functions are required or recommended by 
 .St -ieee754 .
 .Pp
 .Fn copysign
-returns
+and
+.Fn copysignf
+return
 .Fa x
 with its sign changed to
 .Fa y Ns 's.
 .Pp
 .Fn finite
-returns the value 1 just when
+and
+.Fn finitef
+return the value 1 just when
 \-\*(If \*(Lt
 .Fa x
 \*(Lt +\*(If;
@@ -81,7 +103,9 @@ zero is returned
 is \*(Na
 .Pp
 .Fn ilogb
-returns
+and
+.Fn ilogbf
+return
 .Fa x Ns 's exponent
 .Fa n ,
 in integer format.
@@ -94,13 +118,17 @@ returns
 .Dv INT_MIN .
 .Pp
 .Fn nextafter 
-returns the next machine representable number from 
+and
+.Fn nextafterf
+return the next machine representable number from 
 .Fa x
 in direction
 .Fa y .
 .Pp
 .Fn remainder
-returns the remainder
+and
+.Fn remainderf
+return the remainder
 .Fa r
 :=
 .Fa x
@@ -138,7 +166,9 @@ and
 are invalid operations that produce a \*(Na.
 .Pp
 .Fn scalbn
-returns
+and
+.Fn scalbnf
+return
 .Fa x Ns \(**(2** Ns Fa n )
 computed by exponent manipulation.
 .Sh SEE ALSO
diff --git a/lib/msun/man/ieee_test.3 b/lib/msun/man/ieee_test.3
index e1311ca..cdd79a3 100644
--- a/lib/msun/man/ieee_test.3
+++ b/lib/msun/man/ieee_test.3
@@ -30,31 +30,42 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)ieee.3	6.4 (Berkeley) 5/6/91
-.\"	$Id: ieee_test.3,v 1.1 1994/03/11 17:19:01 jtc Exp $
+.\"	$Id: ieee_test.3,v 1.1.1.1 1994/08/19 09:39:43 jkh Exp $
 .\"
 .Dd March 10, 1994
 .Dt IEEE_TEST 3
 .Os 
 .Sh NAME
 .Nm logb ,
+.Nm logbf ,
 .Nm scalb ,
-.Nm significand
+.Nm scalbf ,
+.Nm significand ,
+.Nm significandf
 .Nd IEEE test functions
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double 
 .Fn logb "double x"
+.Ft float 
+.Fn logbf "float x"
 .Ft double 
 .Fn scalb "double x" "double n"
+.Ft float 
+.Fn scalbf "float x" "float n"
 .Ft double
 .Fn significand "double x"
+.Ft float
+.Fn significandf "float x"
 .Sh DESCRIPTION
 These functions allow users to test conformance to 
 .St -ieee754 .
 Their use is not otherwise recommended.
 .Pp
 .Fn logb x
-returns
+and
+.Fn logbf x
+return
 .Fa x Ns 's exponent
 .Fa n ,
 a signed integer converted to double\-precision floating\-point.
@@ -64,12 +75,16 @@ a signed integer converted to double\-precision floating\-point.
 = -\*(If with a division by zero exception.
 .Pp
 .Fn scalbn x n
-returns
+and
+.Fn scalbnf x n
+return
 .Fa x Ns \(**(2** Ns Fa n )
 computed by exponent manipulation.
 .Pp
 .Fn significand x 
-returns 
+and
+.Fn significandf x 
+return
 .Fa sig ,
 where 
 .Fa x 
@@ -79,7 +94,9 @@ with 1 \(<=
 .Fa sig
 < 2.
 .Fn significand x
-is not defined when 
+and
+.Fn significandf x
+are not defined when 
 .Fa x
 is 0, \*(Pm\*(If, or \*(Na.
 .Sh SEE ALSO
diff --git a/lib/msun/man/j0.3 b/lib/msun/man/j0.3
index 4b18e85..da85cf9 100644
--- a/lib/msun/man/j0.3
+++ b/lib/msun/man/j0.3
@@ -30,38 +30,58 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)j0.3	6.7 (Berkeley) 4/19/91
-.\"	$Id: j0.3,v 1.5 1994/01/11 00:46:54 jtc Exp $
+.\"	$Id: j0.3,v 1.1.1.1 1994/08/19 09:39:42 jkh Exp $
 .\"
 .Dd April 19, 1991
 .Dt J0 3
 .Os BSD 4
 .Sh NAME
 .Nm j0 ,
+.Nm j0f ,
 .Nm j1 ,
+.Nm j1f ,
 .Nm jn ,
+.Nm jnf ,
 .Nm y0 ,
+.Nm y0f ,
 .Nm y1 ,
-.Nm yn
+.Nm y1f ,
+.Nm yn ,
+.Nm ynf
 .Nd bessel functions of first and second kind
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn j0 "double x"
+.Ft float
+.Fn j0f "float x"
 .Ft double
 .Fn j1 "double x"
+.Ft float
+.Fn j1f "float x"
 .Ft double
 .Fn jn "int n" "double x"
+.Ft float
+.Fn jnf "int n" "float x"
 .Ft double
 .Fn y0 "double x"
+.Ft float
+.Fn y0f "float x"
 .Ft double
 .Fn y1 "double x"
+.Ft float
+.Fn y1f "float x"
 .Ft double
 .Fn yn "int n" "double x"
+.Ft float
+.Fn ynf "int n" "float x"
 .Sh DESCRIPTION
 The functions
-.Fn j0
-and
+.Fn j0 ,
+.Fn j0f ,
 .Fn j1
+and
+.Fn j1f
 compute the
 .Em Bessel function of the first kind of the order
 0 and the
@@ -70,18 +90,22 @@ compute the
 for the
 real value
 .Fa x ;
-the function
+the functions
 .Fn jn
-computes the
+and
+.Fn jnf
+compute the
 .Em Bessel function of the first kind of the integer order
 .Fa n
 for the real value
 .Fa x .
 .Pp
 The functions
-.Fn y0
+.Fn y0 ,
+.Fn y0f ,
+.Fn y1 ,
 and
-.Fn y1
+.Fn y1f
 compute the linearly independent
 .Em Bessel function of the second kind of the order
 0 and the
@@ -92,17 +116,19 @@ positive
 .Em integer
 value
 .Fa x
-(expressed as a double);
-the function
+(expressed as a double or float);
+the functions
 .Fn yn
-computes the
+and
+.Fn ynf
+compute the
 .Em Bessel function of the second kind for the integer order
 .Fa n
 for the positive 
 .Em integer
 value
 .Fa x
-(expressed as a double).
+(expressed as a double or float).
 .Sh RETURN VALUES
 If these functions are successful,
 the computed value is returned. On the
diff --git a/lib/msun/man/lgamma.3 b/lib/msun/man/lgamma.3
index 02bd1ad..09aaeff 100644
--- a/lib/msun/man/lgamma.3
+++ b/lib/msun/man/lgamma.3
@@ -30,15 +30,17 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)lgamma.3	6.6 (Berkeley) 12/3/92
-.\"	$Id: lgamma.3,v 1.6 1994/01/11 00:46:56 jtc Exp $
+.\"	$Id: lgamma.3,v 1.1.1.1 1994/08/19 09:39:42 jkh Exp $
 .\"
 .Dd December 3, 1992
 .Dt LGAMMA 3
 .Os BSD 4.3
 .Sh NAME
 .Nm lgamma ,
-.Nm gamma
-.Nd log gamma function, gamma function
+.Nm lgammaf ,
+.Nm gamma ,
+.Nm gammaf
+.Nd log gamma functions, gamma functions
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft extern int
@@ -46,12 +48,18 @@
 .sp
 .Ft double
 .Fn lgamma "double x"
+.Ft float
+.Fn lgammaf "float x"
 .Ft double
 .Fn gamma "double x"
+.Ft float
+.Fn gamma "float x"
 .Sh DESCRIPTION
-.Fn Lgamma x
+.Fn lgamma x
+and
+.Fn lgammaf x
 .if t \{\
-returns ln\||\(*G(x)| where
+return ln\||\(*G(x)| where
 .Bd -unfilled -offset indent
 \(*G(x) = \(is\d\s8\z0\s10\u\u\s8\(if\s10\d t\u\s8x\-1\s10\d e\u\s8\-t\s10\d dt	for x > 0 and
 .br
@@ -65,8 +73,10 @@ The external integer
 .Fa signgam
 returns the sign of \(*G(x).
 .Pp
-.Fn Gamma x
-returns \(*G(x), with no effect on
+.Fn gamma x
+and
+.Fn gammaf x
+return \(*G(x), with no effect on
 .Fa signgam .
 .Sh IDIOSYNCRASIES
 Do not use the expression
@@ -79,19 +89,25 @@ lg = lgamma(x); g = signgam\(**exp(lg);
 .Pp
 Only after
 .Fn lgamma
+or
+.Fn lgammaf
 has returned can signgam be correct.
 .Pp
 For arguments in its range,
 .Fn gamma
+and
+.Fn gammaf
 is preferred, as for positive arguments
 it is accurate to within one unit in the last place.
 Exponentiation of
 .Fn lgamma
 will lose up to 10 significant bits.
 .Sh RETURN VALUES
-.Fn Gamma
+.Fn gamma ,
+.Fn gammaf ,
+.Fn lgamma ,
 and
-.Fn lgamma
+.Fn lgammaf
 return appropriate values unless an argument is out of range.
 Overflow will occur for sufficiently large positive values, and
 non-positive integers.
diff --git a/lib/msun/man/math.3 b/lib/msun/man/math.3
index b49a510..8e7e52f 100644
--- a/lib/msun/man/math.3
+++ b/lib/msun/man/math.3
@@ -30,7 +30,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"	from: @(#)math.3	6.10 (Berkeley) 5/6/91
-.\"	$Id: math.3,v 1.4 1994/02/25 19:43:56 jtc Exp $
+.\"	$Id: math.3,v 1.1.1.1 1994/08/19 09:39:42 jkh Exp $
 .\"
 .TH MATH 3M "May 6, 1991"
 .UC 4
@@ -50,8 +50,11 @@ These functions constitute the C math library,
 The link editor searches this library under the \*(lq\-lm\*(rq option.
 Declarations for these functions may be obtained from the include file
 .RI < math.h >.
-The Fortran math library is described in ``man 3f intro''.
+.\" The Fortran math library is described in ``man 3f intro''.
 .SH "LIST OF FUNCTIONS"
+Each of the following double functions has a float counterpart with the
+name ending in f, as an example the float counterpart of double acos(double
+x) is float acosf(float x). 
 .sp 2
 .nf
 .ta \w'copysign'u+2n +\w'infnan.3m'u+10n +\w'inverse trigonometric func'u
@@ -110,11 +113,11 @@ arithmetic conforming to the IEEE Standard 754 for Binary
 Floating\-Point Arithmetic.  The two versions behave very
 similarly, as should be expected from programs more accurate
 and robust than was the norm when UNIX was born.  For
-instance, the programs are accurate to within the numbers
+instance, the programs are accurat ere accurn the numbers
 of \*(ups tabulated above; an \*(up is one \fIU\fRnit in the \fIL\fRast
-\fIP\fRlace.  And the programs have been cured of anomalies that
-afflicted the older math library \fIlibm\fR in which incidents like
-the following had been reported:
+\fIP\fRlace.  And the progrod the prbeen cured of anomalies that
+afflicted the older mat`  older math library \fIlibm\fR in which incidents like
+the followineported:
 .RS
 sqrt(\-1.0) = 0.0 and log(\-1.0) = \-1.7e38.
 .br
diff --git a/lib/msun/man/rint.3 b/lib/msun/man/rint.3
index 13132e6..6b29d74 100644
--- a/lib/msun/man/rint.3
+++ b/lib/msun/man/rint.3
@@ -30,23 +30,28 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)rint.3	5.1 (Berkeley) 5/2/91
-.\"	$Id: rint.3,v 1.4 1994/03/11 01:32:11 jtc Exp $
+.\"	$Id: rint.3,v 1.1.1.1 1994/08/19 09:39:42 jkh Exp $
 .\"
 .Dd March 10, 1994
 .Dt RINT 3
 .Os
 .Sh NAME
-.Nm rint
+.Nm rint ,
+.Nm rintf
 .Nd round to integral value in floating-point format
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn rint "double x"
+.Ft float
+.Fn rintf "float x"
 .Sh DESCRIPTION
 The
 .Fn rint
-function returns the integral value (represented as a double precision number)
-nearest to
+and the
+.Fn rintf
+functions return the integral value (represented as a double or float 
+precision number) nearest to
 .Fa x
 according to the prevailing rounding mode.
 .Sh SEE ALSO
diff --git a/lib/msun/man/sin.3 b/lib/msun/man/sin.3
index 4274a0f..96e35a3 100644
--- a/lib/msun/man/sin.3
+++ b/lib/msun/man/sin.3
@@ -31,22 +31,27 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)sin.3	6.7 (Berkeley) 4/19/91
-.\"	$Id: sin.3,v 1.4 1993/10/29 22:57:28 jtc Exp $
+.\"	$Id: sin.3,v 1.1.1.1 1994/08/19 09:39:42 jkh Exp $
 .\"
 .Dd April 19, 1991
 .Dt SIN 3
 .Os
 .Sh NAME
-.Nm sin
-.Nd sine function
+.Nm sin ,
+.Nm sinf
+.Nd sine functions
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn sin "double x"
+.Ft float
+.Fn sinf "float x"
 .Sh DESCRIPTION
 The
 .Fn sin
-function computes the sine of
+and the
+.Fn sinf
+functions compute the sine of
 .Fa x
 (measured in radians).
 A large magnitude argument may yield a result with little
@@ -54,7 +59,9 @@ or no significance.
 .Sh RETURN VALUES
 The
 .Fn sin
-function returns the sine value.
+and the
+.Fn sinf
+functions return the sine value.
 .Sh SEE ALSO
 .Xr acos 3 ,
 .Xr asin 3 ,
diff --git a/lib/msun/man/sinh.3 b/lib/msun/man/sinh.3
index 39e0a1f..ded4f1f 100644
--- a/lib/msun/man/sinh.3
+++ b/lib/msun/man/sinh.3
@@ -30,26 +30,33 @@
 .\" SUCH DAMAGE.
 .\"
 .\"	from: @(#)sinh.3	6.6 (Berkeley) 4/19/91
-.\"	$Id: sinh.3,v 1.4 1993/10/29 22:57:30 jtc Exp $
+.\"	$Id: sinh.3,v 1.1.1.1 1994/08/19 09:39:42 jkh Exp $
 .Dd April 19, 1991
 .Dt SINH 3
 .Os
 .Sh NAME
-.Nm sinh
+.Nm sinh ,
+.Nm sinhf
 .Nd hyperbolic sine function
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn sinh "double  x"
+.Ft float
+.Fn sinhf "float  x"
 .Sh DESCRIPTION
 The
 .Fn sinh
-function computes the hyperbolic sine of
+and the
+.Fn sinhf
+functions compute the hyperbolic sine of
 .Fa x .
 .Sh RETURN VALUES
 The
 .Fn sinh
-function returns the hyperbolic sine value unless
+and the
+.Fn sinhf
+functions return the hyperbolic sine value unless
 the  magnitude 
 of
 .Fa x
diff --git a/lib/msun/man/sqrt.3 b/lib/msun/man/sqrt.3
index dbe3bfe..b1e3c2d 100644
--- a/lib/msun/man/sqrt.3
+++ b/lib/msun/man/sqrt.3
@@ -30,39 +30,53 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)sqrt.3	6.4 (Berkeley) 5/6/91
-.\"	$Id: sqrt.3,v 1.3 1993/08/14 13:43:05 mycroft Exp $
+.\"	$Id: sqrt.3,v 1.1.1.1 1994/08/19 09:39:42 jkh Exp $
 .\"
 .Dd May 6, 1991
 .Dt SQRT 3
 .Os
 .Sh NAME
 .Nm cbrt ,
-.Nm sqrt
+.Nm cbrtf ,
+.Nm sqrt ,
+.Nm sqrtf
 .Nd cube root and square root functions
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn cbrt "double x"
+.Ft float
+.Fn cbrtf "float x"
 .Ft double
 .Fn sqrt "double x"
+.Ft float
+.Fn sqrtf "float x"
 .Sh DESCRIPTION
 The
 .Fn cbrt
-function computes
+and the
+.Fn cbrtf
+functions compute
 the cube root of
 .Ar x .
 .Pp
 The
 .Fn sqrt
-computes the
+and the
+.Fn sqrtf
+functions compute the
 non-negative square root of x.
 .Sh RETURN VALUES
 The
 .Fn cbrt
-function returns the requested cube root.
+and the
+.Fn cbrtf
+functions return the requested cube root.
 The
 .Fn sqrt
-function returns the requested square root
+and the
+.Fn sqrtf
+functions return the requested square root
 unless an error occurs.
 On the
 .Tn VAX
diff --git a/lib/msun/man/tan.3 b/lib/msun/man/tan.3
index c1acb48..9a0a8e3 100644
--- a/lib/msun/man/tan.3
+++ b/lib/msun/man/tan.3
@@ -30,22 +30,27 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)tan.3	5.1 (Berkeley) 5/2/91
-.\"	$Id: tan.3,v 1.4 1993/10/05 16:33:47 jtc Exp $
+.\"	$Id: tan.3,v 1.1.1.1 1994/08/19 09:39:43 jkh Exp $
 .\"
 .Dd May 2, 1991
 .Dt TAN 3
 .Os
 .Sh NAME
-.Nm tan
-.Nd tangent function
+.Nm tan ,
+.Nm tanf
+.Nd tangent functions
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn tan "double x"
+.Ft float
+.Fn tanf "float x"
 .Sh DESCRIPTION
 The
 .Fn tan
-function computes the tangent of
+and the
+.Fn tanf
+functions compute the tangent of
 .Fa x
 (measured in radians).
 A large magnitude argument may yield a result
diff --git a/lib/msun/man/tanh.3 b/lib/msun/man/tanh.3
index 2f1e27f..7a27cee 100644
--- a/lib/msun/man/tanh.3
+++ b/lib/msun/man/tanh.3
@@ -30,29 +30,36 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)tanh.3	5.1 (Berkeley) 5/2/91
-.\"	$Id: tanh.3,v 1.4 1993/10/05 16:33:49 jtc Exp $
+.\"	$Id: tanh.3,v 1.1.1.1 1994/08/19 09:39:43 jkh Exp $
 .\"
 .Dd May 2, 1991
 .Dt TANH 3
 .Os
 .Sh NAME
-.Nm tanh
-.Nd hyperbolic tangent function
+.Nm tanh ,
+.Nm tanhf
+.Nd hyperbolic tangent functions
 .Sh SYNOPSIS
 .Fd #include <math.h>
 .Ft double
 .Fn tanh "double x"
+.Ft float
+.Fn tanhf "float x"
 .Sh DESCRIPTION
 The
 .Fn tanh
-function computes the hyperbolic tangent of
+and the
+.Fn tanhf
+functions compute the hyperbolic tangent of
 .Fa x .
 For a discussion of error due to roundoff, see
 .Xr math 3 .
 .Sh RETURN VALUES
 The
 .Fn tanh
-function returns the hyperbolic tangent value.
+and the 
+.Fn tanhf
+functions return the hyperbolic tangent value.
 .Sh SEE ALSO
 .Xr acos 3 ,
 .Xr asin 3 ,