Blah blah blah

 class MyFunction
        {
            public static float Fu(float x, float a)
            {
                float f;
                f = 1 / (a * x) + 1 / (x + 1) + 1 / ( x + 2);
                return f;
            }
            public static void Function1(int N, float a, out float xmin, out float xmax, out float ymin, out float ymax, ref float[] arx, ref float[] ary)
            {
                float[] ax, ay;
                ax = new float[N-2];
                ay = new float[N-2];


                for (int j = -(N-2)/2, i = 0; j <= (N-2)/2; j++)
                {
                if (((j / 100.0 ) == 0) || (( j / 100.0 ) == -1) || (( j / 100.0 ) == -2)) continue;
                ax[i] = (float)(j / 100.0 );
                ay[i] = (float)MyFunction.Fu(ax[i], a);
                i++;
                }
                xmin = ax.Min();
                xmax = ax.Max();
                ymax = ay.Max();
                ymin = ay.Min();
                arx = ax;
                ary = ay;
            }
        public static void Function2(int N, float a, float del, out float xminl, out float xmaxl, out float yminl, out float ymaxl, ref float[] arxl, ref float[] aryl)
        {
            float[] ax, ay;
            ax = new float[N - 2];
            ay = new float[N - 2];
            for (int j = -(N - 2) / 2, i = 0; j <= (N - 2) / 2; j++)
            {
                if (((j / 100.0) == 0) || ((j / 100.0) == -1) || ((j / 100.0) == -2)) continue;
                ax[i] = (float)(j / 100.0);
                ay[i] = (float)((Fu(ax[i]+del, a)-Fu(del,a))/del);
                i++;
            }
            xminl = ax.Min();
            xmaxl = ax.Max();
            ymaxl = ay.Max();
            yminl = ay.Min();
            arxl = ax;
            aryl = ay;
        }