WMPRO, WMMINI FW >= 1.0 WMMEGA FW >= 2.0

Return base 10 logarithm of a number

$number: A number

Float: Base 10 logarithm of number

<?
  $val=log10(10);
  print($val); // outputs 1
?>

ln() - Return natural logarithm of a number

power() - Return base raised to the power of exp