Hi, In reference to numbers which you can't describe, if you examine the work they are ALL in the Complex domain, none of them are Real's. Complex numbers deal with areas, not with lengths. If there existed a Real for which we could not describe this would imply that we could not draw a line of that length. Something which is clearly contrary to the axiomatic assumptions of lines and their construction (ie points have no dimension, only position, and lines are infinite sequences of points). A clear Complex example of a 'monster' is Sierpenski's Gasket. It fills an area but has no measurable surface area. Jim Choate CyberTects ravage@ssz.com