polynom fläche berechnen

[tobiasw]

hier die Lösung zu meinem Problem

Delphi-Quellcode:

interface

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

type
  TForm1 = class(TForm)
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    Label6: TLabel;
    Label7: TLabel;
    Label8: TLabel;
    Label9: TLabel;
    Edit1: TEdit;
    Edit2: TEdit;
    Edit3: TEdit;
    Edit4: TEdit;
    Label10: TLabel;
    Label11: TLabel;
    Edit5: TEdit;
    Label12: TLabel;
    Edit6: TEdit;
    Edit7: TEdit;
    Button1: TButton;
    CH_negFlaeche: TCheckBox;
    procedure Button1Click(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure Flaechenberechnung(a3, a2, a1, a0, ug, og : real; var erg : real; Bool_Flaeche : bool);
const Anzahl_intervalle = 10000000 ;
var x : real; i : integer;
begin
  erg := 0;
  x:= ug;
  for i:= 0 to Anzahl_intervalle-1 do
  begin
    if bool_Flaeche = true then
      erg := erg + (og-ug)/Anzahl_intervalle* (a3*x*x*x + a2*x*x + a1*x + a0)
    else
      erg := erg + (og-ug)/Anzahl_intervalle* abs(a3*x*x*x + a2*x*x + a1*x + a0);
    x:= x + (og-ug)/Anzahl_intervalle;
  end;

end;

procedure TForm1.Button1Click(Sender: TObject);
var ergebnis : real;
begin
flaechenberechnung(strtofloat(edit1.Text), strtofloat(edit2.Text), strtofloat(edit3.Text), strtofloat(edit4.Text), strtofloat(edit5.Text), strtofloat(edit6.Text), Ergebnis, CH_negFlaeche.checked);
Edit7.Text:= FloatToStrF( Ergebnis, ffFixed, 11,4);
end;

end.