freepascal.compiler/docs/mathex/ex18.pp

Program Example18;

{ Program to demonstrate the intpower function. }

Uses math;

Procedure DoIntpower (X : extended; Pow : Integer);

begin
  writeln(X:8:4,'^',Pow:2,' = ',intpower(X,pow):8:4);
end;

begin
  dointpower(0.0,0);
  dointpower(1.0,0);
  dointpower(2.0,5);
  dointpower(4.0,3);
  dointpower(2.0,-1);
  dointpower(2.0,-2);
  dointpower(-2.0,4);
  dointpower(-4.0,3);
end.