using StgSharp;
using System;
using System.Diagnostics;

internal class Program
{
    private unsafe static void Main(string[] args)
    {
        /*
        int cc = 3;
        Console.WriteLine(cc/2);
        /**/

        /*
        float test = StgSharp.Math.Calc.ATan(-1f,-1f);
        Console.WriteLine(test);
        /**/

        /*
        // 测速
        for (int cycle = 0; cycle < 100; cycle++)
        {
            float time = 1000000;
            float a = 114514;
            System.Diagnostics.Stopwatch stopwatch = new Stopwatch();
            stopwatch.Start(); //  开始监视代码运行时间
            for (float i = 2; i < time; i++)
            {
                a = StgSharp.Math.ATan(i);
            }
            stopwatch.Stop(); //  停止监视
            TimeSpan timespan = stopwatch.Elapsed; //  获取当前实例测量得出的总时间
            double milliseconds = timespan.TotalMilliseconds;  //  总毫秒数
            Console.WriteLine($"{milliseconds},{a}");


            System.Diagnostics.Stopwatch stopwatch1 = new Stopwatch();
            double b = 114514;
            double time2 = time;
            stopwatch1.Start();
            for (float i = 2; i < time2; i++)
            {
                b = System.MathF.Atan(i);
            }
            stopwatch1.Stop();
            timespan = stopwatch1.Elapsed;
            double milliseconds2 = timespan.TotalMilliseconds;
            Console.WriteLine($"{milliseconds2},{b}");
            Console.WriteLine("");
        }
        /**/


        /*
         //精度测试
        double accuracy = 0;
        for (float i = -200f; i < 200f; i += 0.01f)
        {
            
            double r1 = StgSharp.Math.ATan(i);
            double r2 = 180*System.Math.Atan(i)/3.1415926;
            double ac = ( System.Math.Max(r1,r2)- System.Math.Min(r1, r2) ) / r2;
            if (ac>accuracy)
            {
                accuracy = ac;
                Console.WriteLine(i);
                Console.WriteLine(ac);
                Console.WriteLine(r1);
                Console.WriteLine(r2);
                Console.WriteLine("");
            }
        }
        Console.WriteLine(accuracy);
        /**/

        
    }
}