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A244512
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The angle of the center of each numbered sector of a standard competition dartboard.
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2
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288, 54, 90, 324, 252, 0, 126, 162, 216, 18, 180, 234, 342, 198, 36, 144, 72, 306, 108, 270
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OFFSET
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1,1
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COMMENTS
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A standard dartboard is divided into 20 sectors each subtending an angle of 18 degrees.
The sequence is generated by considering the positive x-axis to be running through the center of the sector numbered "6" and defining this to be 0 degrees. The angular position of each sector is then defined relative to this position through a clockwise rotation of a line collinear with x until the line divides the sector of interest. The numbers are then sectors are ordered from 1 to 20 generating the full sequence.
It is a mere formality to fully define the bounds of each sector by adding and subtracting 9 degrees from each of the numbers in the sequence.
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FORMULA
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CROSSREFS
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KEYWORD
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nonn,fini,full
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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