diff options
Diffstat (limited to 'js/src/tests/test262/language/statements/function/S13.2.1_A5_T2.js')
-rw-r--r-- | js/src/tests/test262/language/statements/function/S13.2.1_A5_T2.js | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A5_T2.js b/js/src/tests/test262/language/statements/function/S13.2.1_A5_T2.js new file mode 100644 index 0000000000..68dd3fba7e --- /dev/null +++ b/js/src/tests/test262/language/statements/function/S13.2.1_A5_T2.js @@ -0,0 +1,28 @@ +// Copyright 2009 the Sputnik authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +info: Closures are admitted +es5id: 13.2.1_A5_T2 +description: > + Returning a function that approximates the derivative of f using + an interval of dx, which should be appropriately small +---*/ + +// Return a function that approximates the derivative of f +// using an interval of dx, which should be appropriately small. +function derivative(f, dx) { + return function(x) { + return (f(x + dx) - f(x)) / dx; + }; +} + +////////////////////////////////////////////////////////////////////////////// +//CHECK#1 +if (Math.abs(derivative(Math.sin, 0.0001)(0) - derivative(Math.sin, 0.0001)(2*Math.PI)) >= 1/65536.0) { + throw new Test262Error('#1: Math.abs(derivative(Math.sin, 0.0001)(0) - derivative(Math.sin, 0.0001)(2*Math.PI)) <= 1/65536.0'); +} +// +////////////////////////////////////////////////////////////////////////////// + +reportCompare(0, 0); |