//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="Cos"
// Project: StgSharp
// AuthorGroup: Nitload
// Copyright (c) Nitload. All rights reserved.
//     
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//     
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
using System;
using System.Runtime.CompilerServices;

namespace StgSharp.Mathematics
{
    public static partial class Scalar
    {

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static float Cos(float x)
        {
            /*
            float refer = x / 360.0f;
            refer -= (int)refer;

            refer *= 40;
            int a = (int)refer;   //大分度，查表
            refer -= a;    //小分度，拟合

            float refer2 = refer * refer;


            return ((-sinData[a]) * ((0.1570796327f * refer) - (6.459640975e-4f * refer * refer2)))
                + (cosData[a] * ((1 - (0.0123370055f * refer2)) + (2.536695709e-5f * refer2 * refer2)));
            */
            return MathF.Cos(x);
        }

    }
}