|
|
A280725
|
|
Decimal expansion of 22*sin(Pi/22).
|
|
5
|
|
|
3, 1, 3, 0, 9, 2, 6, 4, 4, 2, 0, 1, 2, 2, 7, 3, 0, 8, 9, 7, 6, 3, 4, 3, 8, 7, 0, 9, 5, 6, 0, 1, 3, 2, 7, 1, 3, 4, 0, 3, 1, 2, 9, 9, 4, 4, 7, 7, 1, 6, 5, 5, 2, 2, 5, 1, 9, 7, 8, 2, 1, 3, 0, 4, 2, 9, 8, 1, 2, 0, 7, 7, 1, 2, 1, 9, 2, 2, 1, 4, 8, 5, 8, 3, 9, 2, 1, 4, 7, 1, 6, 7, 2, 0, 7, 9, 7, 6, 1, 7, 0, 3, 6, 3, 3
(list;
constant;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
The ratio of the perimeter of a regular 11-gon (hendecagon) to its diameter (largest diagonal).
Also least positive root of x^5 - 11x^4 - 484x^3 + 3993x^2 + 43923x - 161051.
|
|
LINKS
|
|
|
EXAMPLE
|
3.130926442012273089763438709560132713403129944771655225197821304298120771...
|
|
MAPLE
|
|
|
MATHEMATICA
|
RealDigits[22*Sin[Pi/22], 10, 120][[1]] (* Amiram Eldar, Jun 26 2023 *)
|
|
PROG
|
(PARI) 22*sin(Pi/22)
|
|
CROSSREFS
|
|
|
KEYWORD
|
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|