| // Copyright 2015 Microsoft Corporation. All rights reserved. |
| // This code is governed by the license found in the LICENSE file. |
| |
| /*--- |
| description: Math.tanh with special values |
| es6id: 20.2.2.34 |
| ---*/ |
| |
| assert.sameValue(Math.tanh(NaN), Number.NaN, |
| "Math.tanh produces incorrect output for NaN"); |
| assert.sameValue(Math.tanh(Number.NEGATIVE_INFINITY), -1, |
| "Math.tanh should produce -1 for Number.NEGATIVE_INFINITY"); |
| assert.sameValue(Math.tanh(Number.POSITIVE_INFINITY), 1, |
| "Math.tanh should produce 1 for Number.POSITIVE_INFINITY"); |
| assert.sameValue(1 / Math.tanh(-0), Number.NEGATIVE_INFINITY, |
| "Math.tanh should produce -0 for -0"); |
| assert.sameValue(1 / Math.tanh(0), Number.POSITIVE_INFINITY, |
| "Math.tanh should produce +0 for +0"); |
