A197326 Decimal expansion of least x > 0 having sin(x) = sin(Pi*x/3)^2.

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

Offset

1,2

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=1.351884136654419489630798110...

Mathematica

b = 1; c = Pi/3; f[x_] := Sin[x]
t = x /. FindRoot[f[b*x] == f[c*x]^2, {x, 1.3, 1.4}, WorkingPrecision -> 200]
RealDigits[t] (* A197326 *)
Plot[{f[b*x], f[c*x]^2}, {x, 1.3, 1.55}]

Crossrefs

Cf. A197133.

Sequence in context: A302800 A367067 A340529 * A235605 A212695 A209422

Adjacent sequences: A197323 A197324 A197325 * A197327 A197328 A197329

Keyword

nonn,cons

Author

Clark Kimberling, Oct 13 2011

Status

approved