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 A196516 Decimal expansion of the number x satisfying x*e^x=3. 5

%I

%S 1,0,4,9,9,0,8,8,9,4,9,6,4,0,3,9,9,5,9,9,8,8,6,9,7,0,7,0,5,5,2,8,9,7,

%T 9,0,4,5,8,9,4,6,6,9,4,3,7,0,6,3,4,1,4,5,2,9,3,2,8,7,1,5,8,3,3,1,6,6,

%U 4,9,0,5,0,4,4,4,4,4,2,9,5,7,8,8,5,6,7,8,6,6,6,8,2,2,4,3,4,6,7,4

%N Decimal expansion of the number x satisfying x*e^x=3.

%H G. C. Greubel, <a href="/A196516/b196516.txt">Table of n, a(n) for n = 1..5000</a>

%H <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>

%e 1.049908894964039959988697070552897904589...

%t Plot[{E^x, 1/x, 2/x, 3/x, 4/x}, {x, 0, 2}]

%t t = x /. FindRoot[E^x == 1/x, {x, 0.5, 1}, WorkingPrecision -> 100]

%t RealDigits[t] (* A030175 *)

%t t = x /. FindRoot[E^x == 2/x, {x, 0.5, 1}, WorkingPrecision -> 100]

%t RealDigits[t] (* A196515 *)

%t t = x /. FindRoot[E^x == 3/x, {x, 0.5, 2}, WorkingPrecision -> 100]

%t RealDigits[t] (* A196516 *)

%t t = x /. FindRoot[E^x == 4/x, {x, 0.5, 2}, WorkingPrecision -> 100]

%t RealDigits[t] (* A196517 *)

%t t = x /. FindRoot[E^x == 5/x, {x, 0.5, 2}, WorkingPrecision -> 100]

%t RealDigits[t] (* A196518 *)

%t t = x /. FindRoot[E^x == 6/x, {x, 0.5, 2}, WorkingPrecision -> 100]

%t RealDigits[t] (* A196519 *)

%t RealDigits[LambertW[3], 10, 50][[1]] (* _G. C. Greubel-, Nov 16 2017 *)

%o (PARI) lambertw(3) \\ _G. C. Greubel_, Nov 16 2017

%K nonn,cons

%O 1,3

%A _Clark Kimberling_, Oct 03 2011

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Last modified December 8 12:30 EST 2019. Contains 329862 sequences. (Running on oeis4.)