A197388 Decimal expansion of least x > 0 having sin(Pi*x/3) = sin(x/3)^2.

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

Offset

1,1

Comments

The Mathematica program includes a graph. See A197133 for a guide to least x > 0 satisfying sin(b*x) = sin(c*x)^2 for selected b and c.

Links

Table of n, a(n) for n=1..99.

Example

x=2.4610292214832874245685987661297144151696549720...

Mathematica

b = Pi/3; c = 1/3; f[x_] := Sin[x]
t = x /. FindRoot[f[b*x] == f[c*x]^2, {x, 2, 2.5}, WorkingPrecision -> 200]
RealDigits[t] (* A197388 *)
Plot[{f[b*x], f[c*x]^2}, {x, 0, 3}]

Crossrefs

Cf. A197133.

Sequence in context: A009285 A013082 A352639 * A187717 A125944 A077069

Adjacent sequences: A197385 A197386 A197387 * A197389 A197390 A197391

Keyword

nonn,cons

Author

Clark Kimberling, Oct 14 2011

Status

approved