[Overview][Constants][Types][Classes][Procedures and functions] Reference for unit 'math' (#rtl)

intpower

Return integer power.

Declaration

Source position: math.pp line 282

function intpower(

  base: float;

  const exponent: Integer

):float;

Description

Intpowerreturns baseto the power exponent, where exponent is an integer value.

Errors

If baseis zero and the exponent is negative, then an overflow error will occur.

See also

power

  

Return real power.

Example

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.