A195771 Decimal expansion of arcsec(5).

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

Offset: 1

Author

Clark Kimberling, Sep 24 2011

Keywords

• nonn
• cons

Examples

			arcsec(5) = 1.3694384060045658277761961394221280318585...
		

Links

• Index entries for transcendental numbers

Crossrefs

Cf. A195769.

Programs

Mathematica

(See A195769.)
RealDigits[ArcSec[5],10,120][[1]] (* Harvey P. Dale, Aug 27 2023 *)

PARI

acos(1/5) \\ Charles R Greathouse IV, Nov 21 2024

Formula

Equals arcsin(2*sqrt(6)/5) = arccos(1/5) = arctan(2*sqrt(6)). - Amiram Eldar, May 24 2021