OFFSET
1,2
COMMENTS
See A200338 for a guide to related sequences. The Mathematica program includes a graph.
LINKS
Iain Fox, Table of n, a(n) for n = 1..20000
EXAMPLE
x=1.461081743488189415265581228958082088027479878...
MATHEMATICA
a = 4; b = -1; c = 2;
f[x_] := a*x^2 + b*x + c; g[x_] := Tan[x]
Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
RealDigits[r] (* A200601 *)
PROG
(PARI) solve(x=1, 1.5, 4*x^2 - x + 2 - tan(x)) \\ Iain Fox, Mar 07 2018
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Clark Kimberling, Nov 19 2011
STATUS
approved