OFFSET
1,2
COMMENTS
See A200338 for a guide to related sequences. The Mathematica program includes a graph.
EXAMPLE
1.4827483404133071432295688128333967920793256844...
MATHEMATICA
a = 2; b = 4; c = 1;
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] (* A200382 *)
PROG
(PARI) solve(x=1.4, 1.5, 2*x^2+4x+1-tan(x)) \\ Charles R Greathouse IV, Apr 09 2026
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Clark Kimberling, Nov 17 2011
STATUS
approved
