1 files changed, 0 insertions, 28 deletions
diff --git a/src/pkg/math/tanh.go b/src/pkg/math/tanh.go
deleted file mode 100644
index 8bcf2ddac..000000000
--- a/src/pkg/math/tanh.go
+++ /dev/null
@@ -1,28 +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 tangent.
-
-	Sinh and Cosh are called except for large arguments, which
-	would cause overflow improperly.
-*/
-
-// Tanh computes the hyperbolic tangent of x.
-func Tanh(x float64) float64 {
-	if x < 0 {
-		x = -x
-		if x > 21 {
-			return -1
-		}
-		return -Sinh(x) / Cosh(x)
-	}
-	if x > 21 {
-		return 1
-	}
-	return Sinh(x) / Cosh(x)
-}