Сохранение значений функции в файл

#include <vcl.h>
#pragma hdrstop
#include <math.h>
#include "grfik.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
Timer1->Enabled = true;
TrackBar1->Min = 0;
TrackBar1->Max = 60;
TrackBar1->Position = 0;
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Timer1Timer(TObject *Sender)
{
TrackBar1->Position += 1;
for (int x= TrackBar1->Position;x<=60;x+=1)
{
TChartSeries * S1 = Chart1->Series[0];
S1->AddXY(TrackBar1->Position,cos(TrackBar1->Position)/2, "|", clTeeColor);
}
}