unit1.pas

最近开发的,比较使用,曲线拟合,谢谢下载 ,没问题

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    Memo1: TMemo;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation
//PROGRAM D4R13
//Driver for routine BETAI,BETACF
uses
  unit2;
{$R *.DFM}
procedure TForm1.Button1Click(Sender: TObject);
var
  ACTUAL:array[1..5] of real;X,A,B:array[1..5] of real;
  F:TextFile;  j:Integer;  
const
  s1='%7.2f';s2='%11.6f';
begin
  ACTUAL[1]:=0.063769;    ACTUAL[2]:=0.005013;
  ACTUAL[3]:=0.5;    ACTUAL[4]:=1;
  ACTUAL[5]:=0.214682;
  A[1]:=0.5;  A[2]:=1;
  A[3]:=5;    A[4]:=10;
  A[5]:=20;
  B[1]:=0.5;  B[2]:=0.5;
  B[3]:=5;    B[4]:=5;
  B[5]:=10;
  X[1]:=0.01;    X[2]:=0.01;
  X[3]:=0.5;    X[4]:=1;
  X[5]:=0.6;
  //输出计算结果到文件
  AssignFile(F, 'd:\delphi_shu\p4\d4r13.dat');
  Rewrite(F);
  Writeln(F, '     A      B      X     Actual    BETAI(X)');
  For j:= 1 To 5 do
  begin
    Writeln(F,Format(s1,[A[j]]),Format(s1,[B[j]]),Format(s1,[X[j]]),
      Format(s2,[Actual[j]]),Format(s2,[BETAI(A[j],B[J],X[J])]));
  end;
  CloseFile(F);
  //屏幕显示计算结果
  memo1.Lines.LoadFromFile('d:\delphi_shu\p4\d4r13.dat');
end;

end.