Архив всех лаб (delphi) / 2.4 / Unit1

unit Unit1;

interface

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

type
TForm1 = class(TForm)
Label1: TLabel;
Label2: TLabel;
Label3: TLabel;
Edit1: TEdit;
Edit2: TEdit;
Edit3: TEdit;
RadioGroup1: TRadioGroup;
CheckBox1: TCheckBox;
Memo1: TMemo;
Button1: TButton;
BitBtn1: TBitBtn;
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
Edit1.Text:='';
Edit2.Text:='';
Edit3.Text:='';
Memo1.Clear;
RadioGroup1.ItemIndex:=0;
end;

procedure TForm1.Button1Click(Sender: TObject);
var x,y,z,fx,fy,a:extended;
begin
x:=StrToFloat(Edit1.Text);
y:=StrToFloat(Edit2.Text);
z:=StrToFloat(Edit3.Text);
Memo1.Lines.Add('x='+FloatToStrF(x,fffixed,8,2));
Memo1.Lines.Add('y='+FloatToStrF(y,fffixed,8,2));
Memo1.Lines.Add('z='+FloatToStrF(z,fffixed,8,2));
case RadioGroup1.ItemIndex of
0: begin fx:=sinh(x); fy:=sinh(y); end;
1: begin fx:=sqr(x); fy:=sqr(y); end;
2: begin fx:=exp(x); fy:=exp(y); end;
end;
if (3<x*y) and (x*y<8) then a:=ln(abs(x+fy)) else
if x*y>12 then a:=cos(fx)-y else a:=sinh(fx+cos(y));
if CheckBox1.Checked
then Memo1.Lines.Add('ответ='+IntToStr(Round(a)))
else Memo1.Lines.Add('ответ='+FloatToStrF(a,fffixed,8,4));
end;
end.