References
- Fractals Everywhere 2nd editiion M. Barnsley
- Measure, Topology, and Fractal Geometry G. Edgar
- The fractal geometry of nature B. B. Mandelbrot
Based on a n-regular polygon $P_n$, we show that $r_n = 1/(2 \sum^{[(n-4)/4]+1}_{j=0}{cos 2j\pi/n)}$ is the ratio of contractions $f_i(1 \leq i \leq n)$ at each vertex of $P_n$ yielding a symmetric gasket $G_n$ associated with the just-touching I.F.S. $g_n = {f_i