OFFSET
0,1
FORMULA
x^x = 2x, x != 2.
EXAMPLE
0.34632336227858092206485655218088677211354545468282...
MATHEMATICA
RealDigits[x/.FindRoot[-2 x + x^x == 0, {x, 1/2}, WorkingPrecision -> 120]][[1]] (* Michael De Vlieger, Mar 14 2020 *)
PROG
(PARI) solve(x=0.1, 1, x^x-2*x) \\ Michel Marcus, Mar 15 2020
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Wyatt Porter, Mar 14 2020
STATUS
approved