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A197284
Decimal expansion of least x>0 having sin(5x)=(sin 2x)^2.
1
4, 8, 0, 7, 8, 7, 5, 9, 8, 2, 7, 9, 7, 1, 6, 9, 5, 2, 9, 0, 4, 8, 1, 9, 9, 1, 3, 7, 2, 7, 2, 5, 3, 5, 1, 0, 8, 1, 4, 6, 8, 1, 3, 4, 5, 3, 5, 8, 8, 3, 6, 7, 4, 7, 3, 8, 1, 4, 2, 7, 0, 6, 8, 2, 7, 7, 7, 5, 0, 5, 4, 8, 8, 6, 4, 3, 5, 7, 5, 6, 7, 3, 2, 2, 2, 7, 7, 9, 2, 1, 4, 1, 0, 7, 2, 6, 5, 4, 2, 9, 9
OFFSET
0,1
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.
EXAMPLE
x=0.4807875982797169529048199137272...
MATHEMATICA
b = 5; c = 2; f[x_] := Sin[x]
t = x /. FindRoot[f[b*x] == f[c*x]^2, {x, .4, .7}, WorkingPrecision -> 100]
RealDigits[t] (* A197284 *)
Plot[{f[b*x], f[c*x]^2}, {x, 0, Pi}]
CROSSREFS
Cf. A197133.
Sequence in context: A195288 A251992 A021212 * A086468 A125507 A198583
KEYWORD
nonn,cons
AUTHOR
Clark Kimberling, Oct 13 2011
STATUS
approved