OFFSET
3,3
COMMENTS
Angle between chemical bonds in the sp^3 hybridization scheme.
Angle between any two non-parallel bonds in a diamond crystal.
For its value in radians and further comments, see A156546.
LINKS
Stanislav Sykora, Table of n, a(n) for n = 3..2000
EXAMPLE
109.4712206344906913692459993399624359630068431009079482881711063560...
MATHEMATICA
RealDigits[N[ArcCos[-1/3]*180/Pi, 100]][[1]] (* Vaclav Kotesovec, Sep 17 2014 *)
PROG
(PARI) acos(-1/3)*180/Pi
CROSSREFS
KEYWORD
AUTHOR
Stanislav Sykora, Sep 16 2014
STATUS
approved