Function Abs (X : Every numerical type) : Every numerical type;
Abs returns the absolute value of a variable. The result of the function has the same type as its argument, which can be any numerical type.
None.
Program Example1;
{ Program to demonstrate the Abs function. }
Var
r : real;
i : integer;
begin
r:=abs(-1.0); { r:=1.0 }
i:=abs(-21); { i:=21 }
end.