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| unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, Grids;
type
TForm1 = class(TForm)
sg1: TStringGrid;
Edit1: TEdit;
Edit2: TEdit;
Button1: TButton;
Button2: TButton;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
Type MAT=array[1..20,1..20] of real;
Var
A:mat;
I,n,c,b:integer;
S:real;
implementation
{$R *.dfm}
Procedure det(n:integer; var A:mat; var s:real);
Var
I,j,k,k1:integer;
P,r:real;
Begin
P:=1.0;
For k:=1 to n-1 do begin
K1:=k+1;
S:=A[K,K];
J:=K;
For i:=K1 to N begin
R:=A[I,K];
IF ABS ( R) > ABS (S) then begin
S:=R;
J:=I
End;
If S =0.0 then EXIT;
If J<>K then begin
P:= -P;
For I:=K to N do begin
R:=a[k,i];
A[k,i]:=a[j,i];
A[j,i]=r;
End;
For j:=k1 to N do
A[k,j]:=a[k,j]/s;
For I:=k1 to n begin
R:=a[I,k];
For j:=k1 to N do
A[I,j]:=a[i,j]-a[k,j]*r;
End;
P:=p*s
End;
S:=P*A[n,n]
End;
procedure TForm1.Button1Click(Sender: TObject);
begin
sg1.RowCount:=strtoint(edit1.Text);
c:=strtoint(edit1.Text);
sg1.ColCount:=strtoint(edit2.Text);
b:=strtoint(edit1.Text);
end;
procedure TForm1.Button2Click(Sender: TObject);
var
i,j:integer;
begin
for i:=0 to c-1 do
for j:=0 to b-1 do
A[i,j]:=strtofloat(sg1.cells[i,j]);
end;
end. |
(
