interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, Buttons, Spin, ExtCtrls, Math;

type
TfrmFunctions = class(TForm)
lblHeading1: TLabel;
lblHeading2: TLabel;
pnl1: TPanel;
pnl2: TPanel;
pnlFunction: TPanel;
lblBase: TLabel;
lblExponent: TLabel;
lblPower: TLabel;
lblNumber: TLabel;
lblDecimals: TLabel;
lblRoundto: TLabel;
sedBase: TSpinEdit;
sedEx: TSpinEdit;
sedDecimals: TSpinEdit;
edtNumber: TEdit;
edtRoundto: TEdit;
edtPower: TEdit;
bmbReset: TBitBtn;
bmbClose: TBitBtn;
btnShow: TButton;
procedure btnShowClick(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

var
frmFunctions: TfrmFunctions;

implementation

{$R *.dfm}

procedure TfrmFunctions.btnShowClick(Sender: TObject);
var
iBase, iExp, iDecimals : integer;
rNumber, rPower, rRoundto : real;
begin
iBase := sedBase.Value;
iExp := sedEx.Value;
rPower := Power(iBase, iExp);
edtPower.Text := FloatToStr(rPower)
rNumber := StrToFloat(edtNumber.Text);
iDecimals := sedDecimals.Value;
rRoundto := RoundTo(rNumber, iDecimals)
edtRoundto.Text := FloatToStr(rRoundto);
end;

end.


It doesn't want to compile.