blob: 5c73ef3f565c79b6d72e8d22bba1024aed5b0491 [file] [log] [blame]
// 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.
/// @assertion double acos(num x)
/// Converts [x] to a dobule and returns its arc tangent in radians.
/// @description Checks that an argument of atan should be a number (a decimal
/// or hexadecimal integer, or a decimal double).
/// @author
import "dart:math" as Math;
import "../../Utils/expect.dart";
main() {
var a1 = Math.atan(0);
var a2 = Math.atan(0x0000);
var a3 = Math.atan(0.0);
Expect.equals(a1, a2);
Expect.equals(a1, a3);