реферат Программа на Delphi

uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs;
type
TForm1 = class(TForm)
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
x,y,z: extended;
implementation
{$R *.DFM}
label vano;
begin
vano: write('Vvedite X=');
readln (x);
write ('Vvedite Y=');Readln (y);
if 2*x*x-4*y*y*y=0 then
begin
writeln('Pri dannix znacheniax X i Y funkcia ne imeet reshenia');
goto vano;end;
z:=(cos(x)*(1-sin(y)))/(2*x*x-4*y*y*y);
write('Otvet :',z);
end.