Архив всех лаб (delphi) / 3.4 / Unit1

unit Unit1;

interface

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

type
TForm1 = class(TForm)
Label1: TLabel;
Edit1: TEdit;
Edit2: TEdit;
Label2: TLabel;
Edit3: TEdit;
Label3: TLabel;
Edit4: TEdit;
Button1: TButton;
BitBtn1: TBitBtn;
Memo1: TMemo;
Label4: TLabel;
Label5: TLabel;
Label6: TLabel;
Label7: TLabel;
Label8: TLabel;
Edit5: TEdit;
procedure FormCreate(Sender: TObject);
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
memo1.Clear;
edit1.text:='0,1';
edit2.text:='1';
edit3.text:='10';
edit4.text:='0,01';
edit5.text:='';
end;

procedure TForm1.Button1Click(Sender: TObject);
var M,a,b,h,x,w,s,eps:extended;
k:integer;
begin
a:=strtofloat(edit1.Text);
b:=strtofloat(edit2.Text);
M:=strtofloat(edit3.Text);
eps:=strtofloat(edit4.Text);
x:=a; h:=(b-a)/M;
edit5.Text:=floattostrf(h,fffixed,6,2);
repeat
s:=1; w:=1; k:=0;
repeat
inc(k);
w:=-w*sqr(x)/(2*k*(2*k-1));
s:=s+w;
until abs(w)<eps;
memo1.Lines.Add(floattostrf(x,fffixed,5,2)+
' '+floattostrf(s,fffixed,9,6)+
' '+floattostrf(cos(x),fffixed,9,6)+
' '+inttostr(k));
x:=x+h;
until x>b+1e-9;
end;

end.