# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a201925 Showing 1-1 of 1 %I A201925 #5 Mar 30 2012 18:58:03 %S A201925 7,9,5,2,2,6,6,1,3,8,6,0,5,4,0,7,9,8,8,9,6,2,6,1,5,5,6,3,8,8,7,1,8,0, %T A201925 2,9,3,6,3,7,4,8,5,3,8,5,6,2,0,8,7,8,6,0,3,5,7,5,0,0,6,4,4,0,0,6,9,4, %U A201925 8,1,6,2,4,2,3,4,8,1,2,6,8,5,9,0,8,7,3,9,7,0,2,5,4,6,5,0,8,1,3 %N A201925 Decimal expansion of the x nearest 0 that satisfies x^2+4x+3=e^x. %C A201925 See A201741 for a guide to related sequences. The Mathematica program includes a graph. %e A201925 least: -3.024014501135293784775589627797395351659... %e A201925 nearest to 0: -0.79522661386054079889626155638871... %e A201925 greatest: 3.2986275628038651802559413164923413431... %t A201925 a = 1; b = 4; c = 3; %t A201925 f[x_] := a*x^2 + b*x + c; g[x_] := E^x %t A201925 Plot[{f[x], g[x]}, {x, -3.5, 3.5}, {AxesOrigin -> {0, 0}}] %t A201925 r = x /. FindRoot[f[x] == g[x], {x, -3.1, -3.0}, WorkingPrecision -> 110] %t A201925 RealDigits[r] (* A201924 *) %t A201925 r = x /. FindRoot[f[x] == g[x], {x, -.8, -.7}, WorkingPrecision -> 110] %t A201925 RealDigits[r] (* A201925 *) %t A201925 r = x /. FindRoot[f[x] == g[x], {x, 3.2, 3.3}, WorkingPrecision -> 110] %t A201925 RealDigits[r] (* A201926 *) %Y A201925 Cf. A201741. %K A201925 nonn,cons %O A201925 0,1 %A A201925 _Clark Kimberling_, Dec 06 2011 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE