OFFSET
0,1
LINKS
EXAMPLE
arccos((1/2)^(2/3)) = 0.8892939451134830782754582594808563...
MATHEMATICA
r = (1/2)^(2/3);
N[ArcCos[r], 100]
RealDigits[%] (* A195717 *)
RealDigits[ArcCos[(1/2)^(2/3)], 10, 100][[1]] (* G. C. Greubel, Aug 20 2018 *)
PROG
(PARI) acos((1/2)^(2/3)) \\ G. C. Greubel, Aug 20 2018
(Magma) SetDefaultRealField(RealField(100)); Arccos((1/2)^(2/3)); // G. C. Greubel, Aug 20 2018
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Clark Kimberling, Sep 23 2011
STATUS
approved