int alfa;
        int velocity;
        Bitmap bitmap;

        public Form1()
        {
            InitializeComponent();

        }

        private void hScrollBar1_Scroll(object sender, ScrollEventArgs e)
        {
            alfa = hScrollBar1.Value;
            label5.Text = Convert.ToString(alfa);
        }

        private void hScrollBar2_Scroll(object sender, ScrollEventArgs e)
        {
            velocity = hScrollBar2.Value;
            label6.Text = Convert.ToString(velocity);
        }

        private void button1_Click(object sender, EventArgs e)
        {

        }

        private void panel1_Paint(object sender, PaintEventArgs e)
        {
            Point x = new Point(panel1.Width, panel1.Height-1);
            Point y = new Point(1, 0);
            Point z = new Point(1, panel1.Height-1);

            Pen blackPen = new Pen(Color.Black, 2);

            e.Graphics.DrawLine(blackPen, z, y);
            e.Graphics.DrawLine(blackPen, z, x);
        }

        private void timer1_Tick(object sender, EventArgs e)
        {

        }

        private double Position(int x, double alfa, double velocity)
        {
            double y = 0;

            y = x * Math.Tan(alfa) - (10/(2*Math.Pow(velocity,2)*Math.Pow(Math.Cos(alfa),2))*Math.Pow(x,2));

            return y;
        }