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

power

Return real power.

Declaration

Source position: math.pp line 357

function power(

  base: Float;

  exponent: Float

):Float;

Description

power raises base to the power power. This is equivalent to exp(power*ln(base)). Therefore base should be non-negative.

Errors

Any number of floating point math exceptions may be raised, if they are not masked by SetExceptionMask.

See also

intpower

  

Return integer power.

Example

Program Example34;

{ Program to demonstrate the power function. }

Uses Math;

procedure dopower(x,y : float);

begin
  writeln(x:8:6,'^',y:8:6,' = ',power(x,y):8:6)
end;

begin
  dopower(2,2);
  dopower(2,-2);
  dopower(2,0.0);
end.

Documentation generated on: Sep 28 2017