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A125578
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Decimal expansion of positive root of x^2 = cos(x).
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2
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8, 2, 4, 1, 3, 2, 3, 1, 2, 3, 0, 2, 5, 2, 2, 4, 2, 2, 9, 6, 0, 9, 5, 6, 7, 8, 5, 7, 7, 1, 9, 9, 1, 1, 0, 8, 1, 4, 2, 6, 8, 9, 8, 6, 6, 7, 4, 8, 2, 8, 9, 9, 9, 1, 7, 3, 2, 6, 1, 6, 6, 8, 7, 3, 9, 0, 6, 6, 6, 2, 7, 0, 9, 6, 9, 4, 1, 3, 2, 7, 0, 1, 5, 6, 6, 1, 3, 0, 0, 3, 5, 5, 0, 2, 1, 1, 3, 5, 5, 7, 2, 9
(list; constant; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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COMMENTS
| Both roots have equal magnitude: x = +-0.824132312302...
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FORMULA
| x^2 = cos(x)
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EXAMPLE
| 0.824132312302522422960956785771991108142689866748289991732...
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MATHEMATICA
| RealDigits[FindRoot[Cos[x] == x^2, {x, {.7, 1}}, WorkingPrecision -> 120][[1, 2, 1]], 10, 111][[1]]
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CROSSREFS
| Cf. A003957, A124597.
Sequence in context: A160105 A167162 A096257 * A083729 A019775 A138499
Adjacent sequences: A125575 A125576 A125577 * A125579 A125580 A125581
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KEYWORD
| cons,nonn
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AUTHOR
| Denton J. Dailey (djd1497(AT)aol.com), Jan 03 2007
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