| // Copyright (c) 2017, 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. |
| |
| // @dart = 2.9 |
| |
| /// @assertion double sqrt(num x) |
| /// Converts [x] to a double and returns the positive square root of the value. |
| /// @description Checks that an argument of sqrt should be number (a decimal |
| /// or hexadecimal integer, or a decimal double). |
| /// @author ngl@unipro.ru |
| |
| |
| import "dart:math" as Math; |
| import "../../Utils/expect.dart"; |
| |
| main() { |
| var a1 = Math.sqrt(4); |
| var a2 = Math.sqrt(0x0009); |
| var a3 = Math.sqrt(16.0); |
| Expect.equals(a1, 2); |
| Expect.equals(a2, 3); |
| Expect.equals(a3, 4); |
| } |