LibTest/math/atan_A01_t02.dart

/*
 * Copyright (c) 2011, 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.
 */
/**
 * @assertion double atan(num x)
 * Converts [x] to a dobule and returns its arc tangent in radians.
 * @description Checks special values.
 * @author msyabro
 * @reviewer pagolubev
 */

import "dart:math" as Math;
import "../../Utils/expect.dart";

main() {
  Expect.isTrue(Math.atan(double.infinity) == Math.pi / 2);
  Expect.isTrue(Math.atan(double.negativeInfinity) == -Math.pi / 2);
}