A094883 Decimal expansion of sqrt(2)/phi, where phi = (1+sqrt(5))/2.

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

Offset: 0

Author

N. J. A. Sloane, Jun 15 2004

Keywords

• cons
• nonn

Comments

An algebraic integer with minimal polynomial x^4 - 6*x^2 + 4. - Charles R Greathouse IV, Mar 25 2014

Examples

			0.874032048897642...
		

References

• Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, Section 3.16 Turan's power sums constants, p. 246.

Links

• Ivan Panchenko, Table of n, a(n) for n = 0..1000

Programs

Magma

SetDefaultRealField(RealField(100)); 2*Sqrt(2)/(1 + Sqrt(5)); // G. C. Greubel, Aug 17 2018

Mathematica

RealDigits[Sqrt[2]/GoldenRatio, 10, 100][[1]] (* G. C. Greubel, Aug 17 2018 *)

PARI

sqrt(3-sqrt(5)) \\ Charles R Greathouse IV, Mar 25 2014