LogN

Return N-based logarithm.

Declaration

Source position: math.pp line 390

  function LogN(n: Float; x: Float) : Float;

Description

Logn returns the n-base logarithm of X.

Errors

If x is less than or equal to 0 an 'invalid fpu operation' error will occur.

See also

Name Description
ldexp Return (2 to the power p) times x
lnxp1 Return natural logarithm of 1+X
log10 Return 10-Based logarithm.
log2 Return 2-based logarithm

Example

Program Example23;
{ Program to demonstrate the logn function. }
Uses math;
begin
  Writeln(Logn(3,4):8:4);
  Writeln(Logn(2,4):8:4);
  Writeln(Logn(6,9):8:4);
  Writeln(Logn(exp(1),exp(1)):8:4);
  Writeln(Logn(0.5,1):8:4);
  Writeln(Logn(0.25,3):8:4);
  Writeln(Logn(0.125,5):8:4);
end.