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1 // | 1 // |
2 // Copyright 2014 Google Inc. All rights reserved. | 2 // Copyright 2014 Google Inc. All rights reserved. |
3 // | 3 // |
4 // Use of this source code is governed by a BSD-style | 4 // Use of this source code is governed by a BSD-style |
5 // license that can be found in the LICENSE file or at | 5 // license that can be found in the LICENSE file or at |
6 // https://developers.google.com/open-source/licenses/bsd | 6 // https://developers.google.com/open-source/licenses/bsd |
7 // | 7 // |
8 | 8 |
9 part of charted.core.utils; | 9 part of charted.core.utils; |
10 | 10 |
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39 num sinh(num x) => ((x = math.exp(x)) - 1 / x) / 2; | 39 num sinh(num x) => ((x = math.exp(x)) - 1 / x) / 2; |
40 | 40 |
41 /// Hyperbolic tangent. | 41 /// Hyperbolic tangent. |
42 num tanh(num x) => ((x = math.exp(2 * x)) - 1) / (x + 1); | 42 num tanh(num x) => ((x = math.exp(2 * x)) - 1) / (x + 1); |
43 | 43 |
44 /// Converts [degrees] to radians. | 44 /// Converts [degrees] to radians. |
45 num toRadians(num degrees) => degrees * math.PI / 180.0; | 45 num toRadians(num degrees) => degrees * math.PI / 180.0; |
46 | 46 |
47 /// Converts [radians] to degrees. | 47 /// Converts [radians] to degrees. |
48 num toDegrees(num radians) => radians * 180.0 / math.PI; | 48 num toDegrees(num radians) => radians * 180.0 / math.PI; |
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