Most impressive/complex/amazing C-series program?

[Bill Duncan]

Curious. On my Mac using "bc".

Code:


scale=500

pi=4*a(1)
(pi+pi^2+pi^3+pi^4-(2^6+2^7)^-1)/sqrt(2)
100.0000001402465485643435538654358155348292535185675836388305142940\
21874718088039643504074409446291082933664799360836642574325138079136\
97358242195961250129522853095557711449806699432867804248529345133033\
59652630055412228180509664524861498572421166990352185158080606832136\
23836556188625160710784246733785399167613787293233053952343171544792\
12367462994938966048698078961843540834555564764215350642957810850433\
57092407645335324807173127161654417402581881219560223971745507741352\
5588443957564911031670940936