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A198734
Decimal expansion of the least x>0 that gives the absolute minimum of sin(x)+sin(2x)+sin(3x)+sin(4x)+sin(5x)+sin(6x).
3
5, 9, 2, 4, 3, 5, 6, 3, 8, 0, 4, 5, 6, 0, 4, 6, 8, 8, 2, 3, 5, 2, 8, 6, 2, 5, 6, 3, 3, 7, 6, 7, 6, 3, 5, 6, 7, 3, 7, 6, 5, 6, 2, 5, 0, 2, 5, 9, 9, 7, 8, 1, 6, 6, 0, 3, 4, 9, 9, 0, 5, 8, 9, 3, 0, 5, 5, 7, 5, 1, 9, 9, 6, 8, 1, 3, 8, 5, 2, 5, 9, 6, 0, 7, 7, 5, 1, 0, 2, 3, 2, 8, 1, 7, 8, 5, 3, 1, 5
OFFSET
1,1
COMMENTS
See A198677 for a guide to related sequences.
EXAMPLE
x=5.924356380456046882352862563376763567376562...
min=-4.6903618039539417191695677676773074608911...
MATHEMATICA
n = 6; f[t_] = Sin[t]; s[t_] := Sum[f[k*t], {k, 1, n}];
x = N[Minimize[s[t], t], 110]; u = Part[x, 1]
v = t /. Part[x, 2]
RealDigits[u] (* A198733 *)
RealDigits[v] (* A198734 *)
Plot[s[t], {t, -3 Pi, 3 Pi}]
CROSSREFS
Cf. A198677.
Sequence in context: A021632 A248191 A323985 * A332326 A200009 A303662
KEYWORD
nonn,cons
AUTHOR
Clark Kimberling, Oct 29 2011
STATUS
approved