# $EPIC: log10.txt,v 1.3 2006/08/01 04:11:44 sthalik Exp $
======Synopsis:======
$[[log10]](//<number>//)

======Technical:======
  * Returns the base-10 logarithm of //<number>//
  * If the //<number>// argument is omitted the empty string is returned.
  * As always, the return value is limited to 6 decimal places.
  * As always, DOM and RANGE means an error occured.

======Returns:======
The value //X// such that 10 ** //X// == //<number>//

======History:======