OFFSET
-1,1
LINKS
Paolo Xausa, Table of n, a(n) for n = -1..10000
Eric Weisstein's World of Mathematics, Regular Polygon.
Eric Weisstein's World of Mathematics, Sagitta
FORMULA
EXAMPLE
0.0791922201622681469194415463471832057169581080...
MATHEMATICA
First[RealDigits[Tan[Pi/20]/2, 10, 100]]
CROSSREFS
KEYWORD
AUTHOR
Paolo Xausa, Aug 04 2024
STATUS
approved