// 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

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);
}