A337092 Decimal expansion of sqrt(40/Pi).

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

Offset

1,1

Comments

A gauge point marked c^1 or c_1 ("c" with a superscripted or subscripted "1") on slide rule calculating devices in the 20th century. The Pickworth reference notes its use "in calculating the contents of cylinders".

References

C. N. Pickworth, The Slide Rule, 24th Ed., Pitman, London, 1945, p. 53, Gauge Points.

Links

Table of n, a(n) for n=1..86.

Peter Munn, Aristo 89 Slide Rule

Index entries for transcendental numbers

Formula

Equals A010494/A002161 = 2*sqrt(10*A049541).

Example

3.568248232305...

Maple

evalf(sqrt(40.0/Pi)) ; # R. J. Mathar, Sep 02 2020

Mathematica

RealDigits[Sqrt[40/Pi], 10, 100][[1]] (* Amiram Eldar, Aug 15 2020 *)

Prog

(PARI) sqrt(40/Pi) \\ Michel Marcus, Aug 19 2020

Crossrefs

Cf. A002161, A010494, A190732.

Sequence in context: A290577 A145736 A188195 * A021741 A201906 A267158

Adjacent sequences: A337089 A337090 A337091 * A337093 A337094 A337095

Keyword

nonn,cons

Author

Peter Munn, Aug 15 2020

Status

approved