A011289 -id:A011289 - cp's OEIS frontend

A011279 Decimal expansion of 10th root of 10.

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

Offset: 1

N. J. A. Sloane

This is the ratio of +1 dB (one decibel). Decibels are the principal way how power ratios are measured in electric and electronic engineering, acoustics, meteorology, optics and other engineering branches. Corresponding amplitude (rather than power) ratio is given by the square root of this constant (A011289). - Stanislav Sykora, Apr 02 2012

			1.25892541179416721...

Donald Fenna, A Dictionary of Weights, Measures, and Units. Oxford University Press (2002): 61.

Ivan Panchenko, Table of n, a(n) for n = 1..1000
Wikipedia, Decibel
Index entries for algebraic numbers, degree 10.

Cf. A011289.

Digits:=100; evalf(10^(1/10)); # Wesley Ivan Hurt, Mar 26 2014

RealDigits[10^(1/10), 10, 100][[1]] (* Alonso del Arte, Mar 22 2014 *)

10^.1 \\ Charles R Greathouse IV, Mar 27 2014

A110186 Strongly rounded Renard series R"20 of preferred numbers based on 10^(1/20).

Original entry on oeis.org

10, 11, 12, 14, 16, 18, 20, 22, 25, 28, 30, 35, 40, 45, 50, 55, 60, 70, 80, 90, 100

Offset: 1

Lekraj Beedassy, Sep 06 2005

D. Grieve, Standardization and preferred sizes
Sizes, Preferred numbers
Wikipedia, Renard series
Wikipedia, Preferred number

Cf. A011289.

cp's OEIS Frontend

A011279 Decimal expansion of 10th root of 10.

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