A Series is called artistic if every three consecutive terms have a common three-way ratio

A Series is also artistic Iff its Bias is a constant. A Geometric Series with Ratio is an artistic series with

**References**

Duffin, R. J. ``On Seeing Progressions of Constant Cross Ratio.'' *Amer. Math. Monthly* **100**, 38-47, 1993.

© 1996-9

1999-05-25