1 files changed, 0 insertions, 55 deletions
diff --git a/src/pkg/math/asin.go b/src/pkg/math/asin.go
deleted file mode 100644
index 88b851e55..000000000
--- a/src/pkg/math/asin.go
+++ /dev/null
@@ -1,55 +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 arcsine and arccosine.
-
-	They are implemented by computing the arctangent
-	after appropriate range reduction.
-*/
-
-// Asin returns the arcsine, in radians, of x.
-//
-// Special cases are:
-//	Asin(±0) = ±0
-//	Asin(x) = NaN if x < -1 or x > 1
-func Asin(x float64) float64
-
-func asin(x float64) float64 {
-	if x == 0 {
-		return x // special case
-	}
-	sign := false
-	if x < 0 {
-		x = -x
-		sign = true
-	}
-	if x > 1 {
-		return NaN() // special case
-	}
-
-	temp := Sqrt(1 - x*x)
-	if x > 0.7 {
-		temp = Pi/2 - satan(temp/x)
-	} else {
-		temp = satan(x / temp)
-	}
-
-	if sign {
-		temp = -temp
-	}
-	return temp
-}
-
-// Acos returns the arccosine, in radians, of x.
-//
-// Special case is:
-//	Acos(x) = NaN if x < -1 or x > 1
-func Acos(x float64) float64
-
-func acos(x float64) float64 {
-	return Pi/2 - Asin(x)
-}