Index: client/html/benchmarks/common/Math2.dart |
=================================================================== |
--- client/html/benchmarks/common/Math2.dart (revision 5796) |
+++ client/html/benchmarks/common/Math2.dart (working copy) |
@@ -1,49 +0,0 @@ |
-// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
-// for details. All rights reserved. Use of this source code is governed by a |
-// BSD-style license that can be found in the LICENSE file. |
- |
-// Various math-related utility functions. |
- |
-class Math2 { |
- /// Computes the geometric mean of a set of numbers. |
- /// [minNumber] is optional (defaults to 0.001) anything smaller than this |
- /// will be changed to this value, eliminating infinite results. |
- static double geometricMean(Array<double> numbers, |
- [double minNumber = 0.001]) { |
- double log = 0.0; |
- int nNumbers = 0; |
- for (int i = 0, n = numbers.length; i < n; i++) { |
- double number = numbers[i]; |
- if (number < minNumber) { |
- number = minNumber; |
- } |
- nNumbers++; |
- log += Math.log(number); |
- } |
- |
- return nNumbers > 0 ? Math.pow(Math.E, log / nNumbers) : 0.0; |
- } |
- |
- static int round(double d) { |
- return d.round().toInt(); |
- } |
- |
- static int floor(double d) { |
- return d.floor().toInt(); |
- } |
- |
- // TODO (olonho): use d.toStringAsFixed(precision) when implemented by DartVM |
- static String toStringAsFixed(num d, int precision) { |
- String dStr = d.toString(); |
- int pos = dStr.indexOf('.', 0); |
- int end = pos < 0 ? dStr.length : pos + precision; |
- if (precision > 0) { |
- end++; |
- } |
- if (end > dStr.length) { |
- end = dStr.length; |
- } |
- |
- return dStr.substring(0, end); |
- } |
-} |