Список проголосовавших за комментарий "квадратное уравнение <br/> с расчётами при каждом изменении A B C <br/> и с записью результатов на диск <br/> <br/> <a class="imgpreview" href="/uploads/images/05/70/34/2019/04/07/c1a215.gif"><img src="/uploads/images/05/70/34/2019/04/07/8fd448.gif"/></a><br/> <br/> //winquall.cs<br/> using System;<br/> using System.Windows.Forms;<br/> using System.IO;<br/> <br/> class winQUAll: Form<br/> {<br/> winQUAll()<br/> {<br/> Text= «winQUAll Например A=6 B=7 C=2»;<br/> BackColor = System.Drawing.Color.Green;<br/> ForeColor = System.Drawing.Color.Yellow;<br/> ResizeRedraw = true;<br/> Width = 400;<br/> Height = 250;<br/> {<br/> var buttons = new Button();<br/> buttons.Text= «SAVE»;<br/> buttons.Dock = DockStyle.Bottom;<br/> var zc = -7;<br/> var labelc = new Label();<br/> var buttonc = new Button();<br/> buttonc.Text= «C+3»;<br/> buttonc.Dock = DockStyle.Bottom;<br/> var zb = 12;<br/> var labelb = new Label();<br/> var buttonb = new Button();<br/> buttonb.Text= «B-1»;<br/> buttonb.Dock = DockStyle.Bottom;<br/> var za = 2;<br/> var labela = new Label();<br/> var buttona = new Button();<br/> buttona.Text= «A+1»;<br/> buttona.Dock = DockStyle.Bottom;<br/> var labelx = new Label();<br/> var d = (zb * zb — 4 * za * zc);<br/> double x1 = (-zb + Math.Sqrt(d)) / (2 * za);<br/> double x2 = (-zb — Math.Sqrt(d)) / (2 * za);<br/> var labeld = new Label();<br/> labeld.Text= «d= » + d +" X1= " + x1 + " X2= " + x2 + " ";<br/> labeld.Dock = DockStyle.Top;<br/> x1 = (Math.Truncate(x1 * 100))/100;<br/> x2 = (Math.Truncate(x2 * 100))/100;<br/> //labeld.Location = new System.Drawing.Point(80, 15);<br/> labelx.Text= «X1=» + x1 + " X2=" + x2 + " ";<br/> labelx.Location = new System.Drawing.Point(80, 37);<br/> Controls.Add(labeld);<br/> Controls.Add(labelx);<br/> labelc.Text= «C=» + zc + ".....";<br/> labelc.Location = new System.Drawing.Point(20, 100);<br/> Controls.Add(labelc);<br/> buttonc.Click += delegate<br/> {<br/> zc = zc+3;<br/> d = (zb * zb — 4 * za * zc);<br/> x1 = (-zb + Math.Sqrt(d)) / (2 * za);<br/> x2 = (-zb — Math.Sqrt(d)) / (2 * za);<br/> labeld.Text= «d= » + d +" X1= " + x1 + " X2= " + x2 + " ";<br/> labeld.Dock = DockStyle.Top;<br/> x1 = (Math.Truncate(x1 * 100))/100;<br/> x2 = (Math.Truncate(x2 * 100))/100;<br/> //labeld.Location = new System.Drawing.Point(80, 15);<br/> labelx.Text= «X1=» + x1 + " X2=" + x2 + " ";<br/> labelx.Location = new System.Drawing.Point(80, 37);<br/> labelc.Text= «C=» + zc + " ...";<br/> labelc.Location = new System.Drawing.Point(20, 100);<br/> };<br/> Controls.Add(buttonc);<br/> Controls.Add(labeld);<br/> Controls.Add(labelx);<br/> labelb.Text= «B=» + zb + ".....";<br/> labelb.Location = new System.Drawing.Point(20, 80);<br/> Controls.Add(labelb);<br/> buttonb.Click += delegate<br/> {<br/> zb--;<br/> d = (zb * zb — 4 * za * zc);<br/> x1 = (-zb + Math.Sqrt(d)) / (2 * za);<br/> x2 = (-zb — Math.Sqrt(d)) / (2 * za);<br/> labeld.Text= «d= » + d +" X1= " + x1 + " X2= " + x2 + " ";<br/> labeld.Dock = DockStyle.Top;<br/> x1 = (Math.Truncate(x1 * 100))/100;<br/> x2 = (Math.Truncate(x2 * 100))/100;<br/> //labeld.Location = new System.Drawing.Point(80, 15);<br/> labelx.Text= «X1=» + x1 + " X2=" + x2 + " ";<br/> labelx.Location = new System.Drawing.Point(80, 37);<br/> labelb.Text= «B=» + zb + " ...";<br/> labelb.Location = new System.Drawing.Point(20, 80);<br/> };<br/> Controls.Add(buttonb);<br/> Controls.Add(labeld);<br/> Controls.Add(labelx);<br/> labela.Text= «A=» + za + ".....";<br/> labela.Location = new System.Drawing.Point(20, 60);<br/> Controls.Add(labela);<br/> buttona.Click += delegate<br/> {<br/> za++;<br/> d = (zb * zb — 4 * za * zc);<br/> x1 = (-zb + Math.Sqrt(d)) / (2 * za);<br/> x2 = (-zb — Math.Sqrt(d)) / (2 * za);<br/> labeld.Text= «d= » + d +" X1= " + x1 + " X2= " + x2 + " ";<br/> labeld.Dock = DockStyle.Top;<br/> x1 = (Math.Truncate(x1 * 100))/100;<br/> x2 = (Math.Truncate(x2 * 100))/100;<br/> //labeld.Location = new System.Drawing.Point(80, 15);<br/> labelx.Text= «X1=» + x1 + " X2=" + x2 + " ";<br/> labelx.Location = new System.Drawing.Point(80, 37);<br/> labela.Text= «A=» + za + " ...";<br/> labela.Location = new System.Drawing.Point(20, 60);<br/> };<br/> Controls.Add(buttons);<br/> buttons.Click += delegate<br/> {<br/> var outFile = new StreamWriter(«dan.txt»);<br/> outFile.WriteLine(za);<br/> outFile.WriteLine(zb);<br/> outFile.WriteLine(zc);<br/> outFile.WriteLine(d);<br/> outFile.WriteLine(x1);<br/> outFile.WriteLine(x2);<br/> outFile.Close();<br/> };<br/> Controls.Add(buttona);<br/> Controls.Add(labeld);<br/> Controls.Add(labelx);<br/> };<br/> }<br/> static void Main()<br/> {<br/> Application.Run(new winQUAll());<br/> }<br/> }<br/> <br/> "