is base -4.) If you want to go ever further, think about what base \((1+\sqrt{5})/2\) (a.k.a. phinary ) would look like! Or the related bases Fibonacci and NegaFibonacci ! "What is algebra exactly; is it those three-cornered things?" —J. M. Barrie Search: Recent Posts What Makes Ellipses… Ellipses? More Putting Predicaments