Чебышев и Гаусс C#

using System;

namespace Integration2._1 {
    class Program {

        static float f(float x) {
            return 1 / MathF.Pow(MathF.Cosh(x), 2);
           // return MathF.Sqrt(x + 1);
        }

        static float t(float x, float min, float max) {
            return (max + min) / 2 + (max - min) / 2 *x ;
        }

        static void Cheb(int m, float min, float max) {
            float[] x3 = { -0.707107f, 0, 0.707107f };
            float[] x2 = { -0.577350f, 0.577350f };
            float[] x5 = { -0.11547f, -0.11547f, 0, 0.11547f, 0.11547f, };
            float[] x10 = { -0.0577350f, -0.0577350f, -0.0577350f, -0.0577350f, -0.0577350f, 0.0577350f, 0.0577350f, 0.0577350f, 0.0577350f, 0.577350f };
            float integral = 0;
            int count = 0;
            if (m == 2) {
                for (int j = 0; j < m; j++) {
                    integral += f(t(x2[j], min, max));
                }
            }

            else if(m == 3) {
                for (int j = 0; j < m; j++) {
                    integral += f(t(x3[j], min, max));
                }
            }

            else if(m == 5) {
                for (int j = 0; j < m; j++) {
                    integral += f(t(x5[j], min, max));
                }
            }

            else if (m == 10) {
                for (int j = 0; j < m; j++) {
                    integral += f(t(x10[j], min, max));
                }
            }

            else if (m == 100) {
                float strange = 0.577350f / 100;
                for (int j = 0; j < m; j++) {
                    if (j <= 49)
                        strange *= -1;
                    integral += f(t(strange, min, max));
                }
            }
            integral *= (max-min) / m;
            Console.WriteLine(integral);
        }

        static void Gauss(int m, float min, float max) {
            float[] x2 = { -0.577350f, 0.577350f };
            float[] x3 = { -0.77459667f, 0, 0.77459667f };
            float[] Aj = { 5 / 9f, 8 / 9f, 5 / 9f };
            float integral = 0;
            if (m == 2) {
                for (int j = 0; j < m; j++) {
                    integral += f(t(x2[j], min, max));
                }
            }

            else if (m == 3) {
                for (int j = 0; j < m; j++) {
                    integral += Aj[j] * f(t(x3[j], min, max));
                }
            }
            integral *= (max - min) / 2;
            Console.WriteLine(integral);
        }

        static void Main(string[] args) {
            //float min = 1, max = 3;
            float min = MathF.Log(2), max = MathF.Log(3);
            Cheb(2, min, max);
        }
    }
}