Algorithm Math Delphi

Title: Find min/max value of array
Use Find_Max and Find_Min procedures, if you want to get maximum or minimum value from array, which contains 10 numbers.
function Find_Max(Arr: array of Integer): Integer;
var
i, M: Integer;
begin
M:=Arr[Low(Arr)];
for i:=1 to High(Arr) do
if Arr[i]>M then M:=Arr[i];
Result:=M;
end;
function Find_Min(Arr: array of Integer): Integer;
var
i, M: Integer;
begin
M:=Arr[Low(Arr)];
for i:=1 to High(Arr) do
if Arr[i]<M then M:=Arr[i];
Result:=M;
end;