|
|
A201942
|
|
Decimal expansion of the number x satisfying log(x)=e^(-x)
|
|
2
|
|
|
1, 3, 0, 9, 7, 9, 9, 5, 8, 5, 8, 0, 4, 1, 5, 0, 4, 7, 7, 6, 6, 9, 2, 3, 3, 7, 0, 1, 9, 6, 8, 1, 7, 2, 5, 0, 6, 0, 1, 0, 8, 6, 8, 8, 9, 6, 4, 3, 0, 4, 8, 0, 4, 3, 5, 5, 5, 8, 4, 7, 5, 3, 6, 7, 4, 2, 6, 2, 1, 4, 5, 1, 3, 3, 5, 8, 2, 2, 6, 2, 3, 4, 9, 1, 5, 4, 2, 1, 4, 2, 8, 1, 2, 2, 4, 2, 0, 8, 4
(list;
constant;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
COMMENTS
|
Also the solution of x=e^e^(-x). The Mathematica program includes intersecting graphs of y=log(x) and y=e^(-x), as well as y=x, y=e^e^(-x).
|
|
LINKS
|
|
|
EXAMPLE
|
x=1.30979958580415047766923370196817250...
|
|
MATHEMATICA
|
Plot[{Log[x], E^-x, , x, E^E^-x}, {x, -1, 2}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[Log[x] == E^-x, {x, 1.3, 1.4}, WorkingPrecision -> 110]
|
|
CROSSREFS
|
|
|
KEYWORD
|
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|