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

Author

Peter Munn, Aug 29 2020

Keywords

• nonn
• cons

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.

Examples

			3437.7467707849392526078892888463102199443283479938592929496...
		

References

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

Links

• Peter Munn, Aristo 89 Slide Rule
• Wikipedia, Minute of arc
• Index entries for transcendental numbers

Crossrefs

Cf. A072097, A217572.

Programs

Mathematica

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

Formula

Equals 60 * A072097.