The comments are priceless, so, you should read them.<p>It is possible to do a positional system of numerals without a specific zero-digit:<p><a href="http://www.stratigery.com/crank.rant.html" rel="nofollow">http://www.stratigery.com/crank.rant.html</a><p>Clearly, the idea of zero still perplexes people.