[go: up one dir, main page]

login
A094883
Decimal expansion of sqrt(2)/phi, where phi = (1+sqrt(5))/2.
3
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
0,1
COMMENTS
An algebraic integer with minimal polynomial x^4 - 6*x^2 + 4. - Charles R Greathouse IV, Mar 25 2014
REFERENCES
Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, Section 3.16 Turan's power sums constants, p. 246.
LINKS
EXAMPLE
0.874032048897642...
MATHEMATICA
RealDigits[Sqrt[2]/GoldenRatio, 10, 100][[1]] (* G. C. Greubel, Aug 17 2018 *)
PROG
(PARI) sqrt(3-sqrt(5)) \\ Charles R Greathouse IV, Mar 25 2014
(Magma) SetDefaultRealField(RealField(100)); 2*Sqrt(2)/(1 + Sqrt(5)); // G. C. Greubel, Aug 17 2018
CROSSREFS
Sequence in context: A198561 A086253 A225119 * A131081 A326919 A158288
KEYWORD
cons,nonn
AUTHOR
N. J. A. Sloane, Jun 15 2004
STATUS
approved