js/src/tests/test262/ch13/13.2/S13.2.1_A5_T2.js@4ab42b5ab56c (annotated)
js/src/tests/test262/ch13/13.2/S13.2.1_A5_T2.js
Wed, 31 Dec 2014 07:53:36 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 07:53:36 +0100
- branch
- TOR_BUG_3246
- changeset 5
- 4ab42b5ab56c
- permissions
- -rw-r--r--
Correct small whitespace inconsistency, lost while renaming variables.
| michael@0 | 1 | // Copyright 2009 the Sputnik authors. All rights reserved. |
| michael@0 | 2 | // This code is governed by the BSD license found in the LICENSE file. |
| michael@0 | 3 | |
| michael@0 | 4 | /** |
| michael@0 | 5 | * Closures are admitted |
| michael@0 | 6 | * |
| michael@0 | 7 | * @path ch13/13.2/S13.2.1_A5_T2.js |
| michael@0 | 8 | * @description Returning a function that approximates the derivative of f |
| michael@0 | 9 | * using an interval of dx, which should be appropriately small |
| michael@0 | 10 | */ |
| michael@0 | 11 | |
| michael@0 | 12 | // Return a function that approximates the derivative of f |
| michael@0 | 13 | // using an interval of dx, which should be appropriately small. |
| michael@0 | 14 | function derivative(f, dx) { |
| michael@0 | 15 | return function(x) { |
| michael@0 | 16 | return (f(x + dx) - f(x)) / dx; |
| michael@0 | 17 | }; |
| michael@0 | 18 | } |
| michael@0 | 19 | |
| michael@0 | 20 | ////////////////////////////////////////////////////////////////////////////// |
| michael@0 | 21 | //CHECK#1 |
| michael@0 | 22 | if (Math.abs(derivative(Math.sin, 0.0001)(0) - derivative(Math.sin, 0.0001)(2*Math.PI)) >= 1/65536.0) { |
| michael@0 | 23 | $ERROR('#1: Math.abs(derivative(Math.sin, 0.0001)(0) - derivative(Math.sin, 0.0001)(2*Math.PI)) <= 1/65536.0'); |
| michael@0 | 24 | } |
| michael@0 | 25 | // |
| michael@0 | 26 | ////////////////////////////////////////////////////////////////////////////// |
| michael@0 | 27 |
