OFFSET
0,1
COMMENTS
The other (complex) roots are 0.464912201602897854... + 1.07147384027026940...*i, and -0.869277501842593861 + 0.388269406599740355...*i, and their conjugates.
FORMULA
0.808730600479392013738554526511400064951377351559313075548116401836543340...
MATHEMATICA
RealDigits[x /. FindRoot[x^5 + x^2 - 1, {x, 1}, WorkingPrecision -> 120], 10, 120][[1]] (* Amiram Eldar, Dec 15 2022 *)
PROG
(PARI) solve(x=0, 1, x^5 + x^2 - 1) \\ Michel Marcus, Dec 19 2022
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Wolfdieter Lang, Dec 15 2022
STATUS
approved