Перевод данных из формата Double в Real - Turbo Pascal

program test;
 
const
  N = 5;
  M = 4;
type
  TMatrixReal = packed array [1..n, 1..M] of real;
  TMatrixDouble = packed array [1..n, 1..M] of double;
var
  i, j: integer;
  arReal: TMatrixReal;
  arRealYet: TMatrixReal;
  arDouble: TMatrixDouble;
  f: file;
begin
  Randomize;
  for i := 1 to n do
    for j := 1 to m do
      arReal[i, j] := i * 10 + j / 1000;
  {-----------------}
  Assign(f, 'FReal.dat');
  rewrite(f, 1);
  blockwrite(f, arReal, sizeof(arReal));
  Close(f);
  {-----------------}
  reset(f, 1);
  blockread(f, arRealYet, sizeof(arRealYet));
  Close(f);
  {-----------------}
  for i := 1 to N do
    for j := 1 to M do
      arDouble[i, j] := arRealYet[i, j];
  {-----------------}
  for i := 1 to N do
  begin
    for j := 1 to M do
      Write(arDouble[i, j]: 10: 3);
    writeln;
  end;
end.