A195717 Decimal expansion of arccos((1/2)^(2/3)).

8, 8, 9, 2, 9, 3, 9, 4, 5, 1, 1, 3, 4, 8, 3, 0, 7, 8, 2, 7, 5, 4, 5, 8, 2, 5, 9, 4, 8, 0, 8, 5, 6, 3, 8, 1, 5, 3, 9, 2, 1, 0, 4, 5, 2, 4, 6, 9, 2, 1, 5, 2, 7, 3, 4, 6, 4, 7, 5, 0, 0, 4, 2, 0, 2, 1, 8, 3, 0, 9, 2, 0, 1, 2, 3, 3, 9, 0, 3, 6, 3, 6, 1, 9, 6, 5, 7, 6, 1, 5, 1, 7, 5, 9, 6, 7, 8, 9, 1, 7

Offset: 0

Author

Clark Kimberling, Sep 23 2011

Keywords

• nonn
• cons

Examples

			arccos((1/2)^(2/3)) = 0.8892939451134830782754582594808563...
		

Links

• G. C. Greubel, Table of n, a(n) for n = 0..10000
• Index entries for transcendental numbers

Crossrefs

Cf. A195716.

Programs

Magma

SetDefaultRealField(RealField(100)); Arccos((1/2)^(2/3)); // G. C. Greubel, Aug 20 2018

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 *)

PARI

acos((1/2)^(2/3)) \\ G. C. Greubel, Aug 20 2018