OFFSET
0,2
FORMULA
From Amiram Eldar, May 30 2021: (Start)
Equals Pi/2 - A195783.
Equals arcsin(1/8) = arccos(3*sqrt(7)/8) = arctan(1/(3*sqrt(7))). (End)
EXAMPLE
arccsc(8)=0.1253278311680653968745669863570847180481477...
MATHEMATICA
(See A195781.)
PROG
(PARI) asin(1/8) \\ Charles R Greathouse IV, Nov 21 2024
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Clark Kimberling, Sep 24 2011
STATUS
approved