1 files changed, 0 insertions, 77 deletions
diff --git a/src/pkg/math/sinh.go b/src/pkg/math/sinh.go
deleted file mode 100644
index 139b911fe..000000000
--- a/src/pkg/math/sinh.go
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package math
-
-/*
-	Floating-point hyperbolic sine and cosine.
-
-	The exponential func is called for arguments
-	greater in magnitude than 0.5.
-
-	A series is used for arguments smaller in magnitude than 0.5.
-
-	Cosh(x) is computed from the exponential func for
-	all arguments.
-*/
-
-// Sinh returns the hyperbolic sine of x.
-//
-// Special cases are:
-//	Sinh(±0) = ±0
-//	Sinh(±Inf) = ±Inf
-//	Sinh(NaN) = NaN
-func Sinh(x float64) float64 {
-	// The coefficients are #2029 from Hart & Cheney. (20.36D)
-	const (
-		P0 = -0.6307673640497716991184787251e+6
-		P1 = -0.8991272022039509355398013511e+5
-		P2 = -0.2894211355989563807284660366e+4
-		P3 = -0.2630563213397497062819489e+2
-		Q0 = -0.6307673640497716991212077277e+6
-		Q1 = 0.1521517378790019070696485176e+5
-		Q2 = -0.173678953558233699533450911e+3
-	)
-
-	sign := false
-	if x < 0 {
-		x = -x
-		sign = true
-	}
-
-	var temp float64
-	switch true {
-	case x > 21:
-		temp = Exp(x) / 2
-
-	case x > 0.5:
-		temp = (Exp(x) - Exp(-x)) / 2
-
-	default:
-		sq := x * x
-		temp = (((P3*sq+P2)*sq+P1)*sq + P0) * x
-		temp = temp / (((sq+Q2)*sq+Q1)*sq + Q0)
-	}
-
-	if sign {
-		temp = -temp
-	}
-	return temp
-}
-
-// Cosh returns the hyperbolic cosine of x.
-//
-// Special cases are:
-//	Cosh(±0) = 1
-//	Cosh(±Inf) = +Inf
-//	Cosh(NaN) = NaN
-func Cosh(x float64) float64 {
-	if x < 0 {
-		x = -x
-	}
-	if x > 21 {
-		return Exp(x) / 2
-	}
-	return (Exp(x) + Exp(-x)) / 2
-}