OFFSET
0,1
COMMENTS
This number is the reciprocal of A319034.
The other (complex) roots are, with the present number r = (2/3)^(1/3), r*w = -0.4367902323... + 0.7565428747...*i, and its conjugate, where w = exp(2*Pi*i/3) = (-1 + sqrt(3)*i)/2 is one of the complex roots of x^3 - 1.
EXAMPLE
0.87358046473629886904722042681399875674647588190787724170092460190956...
MATHEMATICA
RealDigits[Surd[2/3, 3], 10, 100][[1]] (* Amiram Eldar, Jan 05 2023 *)
PROG
(PARI) (2/3)^(1/3) \\ Michel Marcus, Jan 05 2023
CROSSREFS
KEYWORD
AUTHOR
Wolfdieter Lang, Jan 02 2023
STATUS
approved