unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, ExtCtrls; type TForm1 = class(TForm) Edit1: TEdit; Edit2: TEdit; Edit3: TEdit; Label1: TLabel; Label2: TLabel; Label3: TLabel; Button1: TButton; Button2: TButton; Button3: TButton; Panel1: TPanel; procedure Button1Click(Sender: TObject); procedure Button2Click(Sender: TObject); procedure Button3Click(Sender: TObject); private { Private declarations } public { Public declarations } end; var Form1: TForm1; x,y:Real; implementation {$R *.dfm} procedure TForm1.Button1Click(Sender: TObject); begin x:=...