A197265 Decimal expansion of least x>0 having sin(3x) = sin(7x)^2.

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

Offset

0,2

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=0..86.

Example

x=0.06524678017903043323437021790838201389797754089...

Mathematica

b = 3; c = 7; f[x_] := Sin[x]
t = x /. FindRoot[f[b*x] == f[c*x]^2, {x, .05, .2}, WorkingPrecision -> 100]
RealDigits[t] (* A197265 *)
Plot[{f[b*x], f[c*x]^2}, {x, 0, 0.6}]

Crossrefs

Cf. A197133.

Sequence in context: A144689 A221215 A199180 * A198107 A004554 A178959

Adjacent sequences: A197262 A197263 A197264 * A197266 A197267 A197268

Keyword

nonn,cons

Author

Clark Kimberling, Oct 12 2011

Extensions

a(73) onward corrected by Sean A. Irvine, Sep 08 2021

Status

approved