proga7

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Label1: TLabel;
    Button1: TButton;
    Label2: TLabel;
    Label3: TLabel;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
const
  p=10.5;
  x1=2.4;
  x2=25.5;
  h=1.1;
var
  Y: array [1..1000] of real;
  x, xmax, Ymax: real;
  i: integer;
begin
  Ymax:=-9999999999999;
  xmax:=0;
  x:=x1;
  i:=0;
  while x<=x2+1 do begin
    i:=i+1;
    if x > (p*sin(x)) then
      Y[i]:=2.5*10*10*x-exp(x)
    else if x <= (p*sin(x)) then
      Y[i]:=(0.2*10*10*10*x*x)/(2.5+sqr(sin(x)));
    Label1.Caption:=Label1.Caption+'Y('+FloatToStr(x)+')='+FormatFloat('0.####', Y[i])+'; ';
    if Y[i]>Ymax then begin
      Ymax:=Y[i];
      xmax:=x;
    end;
    x:=x+h;
  end;
  Label2.Caption:='Максимальное значение Y('+FloatToStr(xmax)+') = '+FloatToStr(Ymax);
end;

end.