private void timer2_Tick(object sender, EventArgs e)
        {
            dif1.start(Convert.ToInt32(NUD_mem_step.Text));
            dif2.start(Convert.ToInt32(NUD_mem_step.Text));

            zedGraphControl1.GraphPane.CurveList.Clear();
            PointPairList u1 = new PointPairList();
            PointPairList v1 = new PointPairList();

            PointPairList u2 = new PointPairList();
            PointPairList v2 = new PointPairList();

            PointPairList raznAct    = new PointPairList();
            PointPairList raznIng    = new PointPairList();
            double        maxRaznAct = 0;
            double        maxRaznIng = 0;

            for (int i = 0; i < dif1.get_n() + 1; i++)
            {
                u1.Add(dif1.Points[i], dif1.CurrentU1[i]);
                v1.Add(dif1.Points[i], dif1.CurrentU2[i]);

                u2.Add(dif2.Points[i], dif2.CurrentU1[i]);
                v2.Add(dif2.Points[i], dif2.CurrentU2[i]);

                double raznCurAct = Math.Abs(dif2.CurrentU1[i] - dif1.CurrentU1[i]);
                double raznCurIng = Math.Abs(dif2.CurrentU2[i] - dif1.CurrentU2[i]);
                maxRaznAct = Math.Max(maxRaznAct, raznCurAct);
                maxRaznIng = Math.Max(maxRaznIng, raznCurIng);
                raznAct.Add(dif1.Points[i], raznCurAct);
                raznIng.Add(dif1.Points[i], raznCurIng);
            }
            lbRaznNormAct.Text = "||u1-v1|| = " + maxRaznAct;
            lbRaznNormIng.Text = "||u2-v2|| = " + maxRaznIng;

            if (chbFirst.Checked)
            {
                zedGraphControl1.GraphPane.AddCurve("u1(x) - активатор, н.у. 1", u1, System.Drawing.Color.Green, SymbolType.None);
                zedGraphControl1.GraphPane.AddCurve("u2(x) - ингибитор, н.у. 1", v1, System.Drawing.Color.DarkRed, SymbolType.None);
            }

            if (chbSecond.Checked)
            {
                zedGraphControl1.GraphPane.AddCurve("u1(x) - активатор, н.у. 2", u2, System.Drawing.Color.LightGreen, SymbolType.None);
                zedGraphControl1.GraphPane.AddCurve("u2(x) - ингибитор, н.у. 2", v2, System.Drawing.Color.Red, SymbolType.None);
            }

            if (chbRazn.Checked)
            {
                zedGraphControl1.GraphPane.AddCurve("Модуль разности активаторов", raznAct, System.Drawing.Color.DarkBlue, SymbolType.None);
                zedGraphControl1.GraphPane.AddCurve("Модуль разности ингибиторов", raznIng, System.Drawing.Color.DarkGoldenrod, SymbolType.None);
            }
            zedGraphControl1.AxisChange();
            zedGraphControl1.Invalidate();

            time        += t * Convert.ToDouble(NUD_mem_step.Text);
            LB_Time.Text = "Текущее время = " + Convert.ToString(time);
            LB_Step.Text = "Слой = " + dif1.get_layerNum();
        }
        private void timer1_Tick(object sender, EventArgs e)
        {
            dif.start(Convert.ToInt32(NUD_mem_step.Text));
            dif.plot(zedGraphControl1, LB_norm_u1, LB_norm_u2, CB_STAT_SOL.Checked);
            if (is_visible_nu)
            {
                dif.plot_star(zedGraphControl1);
            }

            time        += t * Convert.ToDouble(NUD_mem_step.Text);
            LB_Time.Text = "Текущее время = " + Convert.ToString(time);
            LB_Step.Text = "Слой = " + dif.get_layerNum();
        }