1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:
13:
14:
15:
16:
17:
18:
19:
20:
21:
22:
23:
24:
25:
26:
27:
28:
29:
30:
31:
32:
33:
34:
35:
36:
37:
38:
39:
40:
41:
42:
43:
44:
45:
46:
47:
48:
49:
50:
51:
52:
53:
54:
55:
56:
57:
58:
59:
60:
61:
62:
63:
64:
65:
66:
67:
68:
69:
70:
71:
72:
73:
74:
75:
76:
77:
78:
79:
80:
81:
82:
83:
84:
85:
86:
87:
88:
89:
90:
91:
92:
93:
94:
95:
96:
97:
98:
99:
100:
101:
102:
103:
104:
105:
106:
107:
108:
109:
110:
111:
112:
113:
114:
115:
116:
117:
118:
119:
120:
121:
122:
123:
124:
125:
126:
127:
128:
129:
130:
131:
132:
133:
134:

interface

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

type
  TForm1 = class(TForm)
    Image1: TImage;
    Panel1: TPanel;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    Label6: TLabel;
    Label7: TLabel;
    Label8: TLabel;
    Label9: TLabel;
    Label10: TLabel;
    Label11: TLabel;
    Label12: TLabel;
    c51: TEdit;
    c52: TEdit;
    c42: TEdit;
    c41: TEdit;
    c32: TEdit;
    c31: TEdit;
    c22: TEdit;
    c21: TEdit;
    c12: TEdit;
    c11: TEdit;
    c02: TEdit;
    c01: TEdit;
    Edit13: TEdit;
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
    procedure FormResize(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
c51i,c52i,c41i,c42i,c31i,c32i,c21i,c22i,c11i,c12i,c01i,c02i:integer;
formel:string;
rechteck:trect;
i:integer;
y,maxx,minx:real;
x,maxx2,minx2:real;
begin
  c51i:=strtoint(c51.text);
  formel:=inttostr(c51i)+'/';
  label1.caption:=formel;
  c52i:=strtoint(c52.text);
  formel:=inttostr(c52i)+'-';
  label2.caption:=formel;
  c41i:=strtoint(c41.text);
  formel:=inttostr(c41i)+'+';
  label3.caption:=formel;
  c42i:=strtoint(c42.text);
  formel:=inttostr(c42i)+'*';
  label4.caption:=formel;
  c31i:=strtoint(c31.text);
  formel:=inttostr(c31i)+'/';
  label5.caption:=formel;
  c32i:=strtoint(c32.text);
  formel:=inttostr(c32i)+'/';
  label6.caption:=formel;
  c21i:=strtoint(c21.text);
  formel:=inttostr(c21i)+'/';
  label7.caption:=formel;
  c22i:=strtoint(c22.text);
  formel:=inttostr(c22i)+'/';
  label8.caption:=formel;
  c11i:=strtoint(c11.text);
  formel:=inttostr(c11i)+'/';
  label9.caption:=formel;
  c12i:=strtoint(c12.text);
  formel:=inttostr(c12i)+'/';
  label10.caption:=formel;
  c01i:=strtoint(c01.text);
  formel:=inttostr(c01i)+'/';
  label11.caption:=formel;
  c02i:=strtoint(c02.text);
  formel:=inttostr(c02i)+'/';
  label12.caption:=formel;
  rechteck.Left:=0;
  rechteck.top:=0;
  rechteck.right:=image1.Width;
  rechteck.Bottom:=image1.Height;
  image1.Canvas.FillRect(rechteck);
  minx:=1e50;
  maxx:=-1e50;
  minx2:=1e50;
  maxx2:=-1e50;
  for i:=-300 to 300 do
    begin
      y:=(c51i/c52i)* power(i ,5)+(c41i/c42i)* power(i ,4)+(c31i/c32i)* power(i ,3)+(c21i/c22i)* power(i ,2)+(c11i/c12i)* i +(c01i/c02i);
      if y>maxx then maxx:=y;
      if y<minx then minx:=y;
     { x:=(c51i/c52i)* power(i ,5)+(c41i/c42i)* power(i ,4)+(c31i/c32i)* power(i ,3)+(c21i/c22i)* power(i ,2)+(c11i/c12i)* i +(c01i/c02i);
      if x>maxx2 then maxx2:=x;
      if x<minx2 then minx2:=x; }
    end;
       image1.Canvas.MoveTo(-300+3000,round((y*image1.Height/(maxx-minx))+image1.Height/2));
  for i:=-300 to 300 do
    begin

      y:=(c51i/c52i)* power(i ,5)+(c41i/c42i)* power(i ,4)+(c31i/c32i)* power(i ,3)+(c21i/c22i)* power(i ,2)+(c11i/c12i)* i +(c01i/c02i);
      image1.Canvas.LineTo(i+300,round((y*image1.Height/(maxx-minx))+image1.Height/2));
    { x:=(c51i/c52i)* power(i ,5)+(c41i/c42i)* power(i ,4)+(c31i/c32i)* power(i ,3)+(c21i/c22i)* power(i ,2)+(c11i/c12i)* i +(c01i/c02i);
      image1.Canvas.LineTo(i+100,round((x*image1.Height/(maxx2-minx2))+image1.Height/2));}
    end;
end;

procedure TForm1.FormResize(Sender: TObject);
begin
image1.Align:=alclient;

Button1Click(nil);
image1.Repaint;
end;

end.