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// 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 cos(num radians)
/// If [radians] is not a finite number, the result is NaN.
/// @description Checks that [cos] returns NaN if [radians] is not a finite
/// number.
/// @author msyabro
import "dart:math" as Math;
import "../../Utils/expect.dart";
main() {