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A241243
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Decimal representation of sin(Pi/17).
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3
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1, 8, 3, 7, 4, 9, 5, 1, 7, 8, 1, 6, 5, 7, 0, 3, 3, 1, 5, 7, 4, 4, 0, 8, 8, 3, 9, 6, 2, 0, 7, 2, 7, 5, 8, 2, 4, 8, 9, 1, 3, 8, 5, 2, 3, 8, 4, 4, 4, 9, 9, 4, 0, 5, 8, 5, 0, 6, 5, 0, 8, 5, 7, 7, 4, 8, 9, 1, 4, 9, 2, 8, 2, 5, 3, 0, 5, 0, 1, 7, 3, 0, 3, 0, 6, 0, 1, 1, 9, 5, 1, 2, 1, 0, 7, 3, 0, 4, 8, 5, 9, 2, 9, 6, 7, 9, 7, 6, 3, 4, 0, 0, 2, 9, 7, 4, 9, 1, 6, 9
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OFFSET
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1,2
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REFERENCES
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Saul Stahl, "Geometry From Euclid To Knots" Chapter 4.3, 'Regular Polygons', Courier - Dover Publications, NJ, 2009, pp. 153-154.
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LINKS
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FORMULA
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Equals 1/4 sqrt(8 - sqrt(2*(15 + sqrt(17) - sqrt(2*(17 - sqrt(17))) + sqrt(2*(34 + 6 sqrt(17) + sqrt(2*(17 - sqrt(17))) - sqrt(34*(17 - sqrt(17))) + 8*sqrt(2*(17 + sqrt(17)))))))). - Robert G. Wilson v, Aug 14 2014
The minimal polynomial is 65536x^16 - 278528x^14 + 487424x^12 - 452608x^10 + 2398360x^8 + 11424x^4 - 816x^2 + 17. - Robert G. Wilson v, Aug 14 2014
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EXAMPLE
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0.18374951781657033157440883962072758248913852384449940585065085774891492825305...
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MAPLE
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MATHEMATICA
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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