unit Unit2;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TForm2 = class(TForm)
    Edit1: TEdit;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Button1: TButton;
    procedure Edit1Click(Sender: TObject);
    procedure Label1Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form2: TForm2;

implementation

{$R *.dfm}

procedure TForm2.Button1Click(Sender: TObject);
var wurzel: real;
    ergebnis:real;
begin
wurzel := StrToInt(Edit1.Text);
ergebnis := sqrt(wurzel)
end;
Label3.Caption := FloatToStr(ergebnis);
end;



begin

end;

end.