A337493 Decimal expansion of 10800/Pi, number of minutes of arc in a radian.

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

Offset

4,1

Comments

Corresponds to a significant mark labeled with a (typographic) prime symbol on slide rule calculating devices in the 20th century. The Pickworth reference explains its use for sines and tangents of small angles.

References

C. N. Pickworth, The Slide Rule, 24th Ed., Pitman, London, 1945, pp. 76-78, Trigonometrical Applications.

Links

Table of n, a(n) for n=4..105.

Peter Munn, Aristo 89 Slide Rule

Wikipedia, Minute of arc

Index entries for transcendental numbers

Formula

Equals 60 * A072097.

Example

3437.7467707849392526078892888463102199443283479938592929496...

Mathematica

RealDigits[10800/Pi, 10, 100][[1]] (* Amiram Eldar, Sep 18 2020 *)

Crossrefs

Cf. A072097, A217572.

Sequence in context: A358045 A371858 A111970 * A291317 A141730 A127737

Adjacent sequences: A337490 A337491 A337492 * A337494 A337495 A337496

Keyword

nonn,cons

Author

Peter Munn, Aug 29 2020

Status

approved