[Fazotron]

Код:

procedure TForm1.Button1Click(Sender: TObject);
var i,j,f,k: integer;
    e:real;
    l1,l2:integer;
    a:array of real;
    b:array of real;
    c:array of array of real;
    d:array of real;
begin
  l1:=Memo1.Lines.Count;
  l2:=Memo2.Lines.Count;
  SetLength(a,l1);
  SetLength(b,l2);
  Setlength(c, l1,l2);
  SetLength(d, (l1+l2-1));

 for i := 0 to l1-1 do
  a[i]:= StrToFloat(Memo1.Lines[i]);


   for j := 0 to l2-1 do
    begin
    b[j]:= strtofloat(Memo2.Lines[j]);
    end;

 for i := 0 to l1-1 do
    begin
 for j := 0 to l2-1 do
        begin
          c[i,j]:=a[i]*b[j];
        end;
    end;

 for i := 0 to l1-1 do
    begin
 for j := 0 to l2-1 do
        begin
        stringGrid1.Cells[i,j]:=floatToStr(c[i,j]);
        end;
    end;

  d[1]:=c[1,1];
  f:=3;
  e:=0;

  For k:=2 to (l1+l2) do
    begin
  for i := 1 to l1 do
        begin
          for j := 1 to l2 do
            begin
                if (j+i)=f then
                e:=e + c[i,j];
            end;
        end;
      d[k]:=e;
      e:=0;
      f:=f+1;
    end;


   for j := 0 to High(d) do
    begin
      Memo3.Lines.Add(floattostr(d[j]));
    end;

end;

выдает ошибку Acsess Violation в красной строке.
в чем может быть проблема?