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Unified Diff: src/pkg/math/log10.go

Issue 1740043: code review 1740043: math: amd64 version of log (Closed)
Patch Set: code review 1740043: math: amd64 version of log Created 13 years, 8 months ago
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Index: src/pkg/math/log10.go
===================================================================
new file mode 100644
--- /dev/null
+++ b/src/pkg/math/log10.go
@@ -0,0 +1,13 @@
+// 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
+
+// Log10 returns the decimal logarithm of x.
+// The special cases are the same as for Log.
+func Log10(x float64) float64 { return Log(x) * (1 / Ln10) }
+
+// Log2 returns the binary logarithm of x.
+// The special cases are the same as for Log.
+func Log2(x float64) float64 { return Log(x) * (1 / Ln2) }
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