Dominoes: Difference between revisions
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m (xtra) |
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return BigInt(floor(prod( |
return BigInt(floor(prod( |
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[prod( |
[prod( |
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[big"4.0" * cospi(j / (m + 1)) + 4 * cospi((k / (n + 1))) for k in 1: |
[big"4.0" * cospi(j / (m + 1)) + 4 * cospi((k / (n + 1))) for k in 1:(n+1)÷2] |
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) for j in 1: |
) for j in 1:(m+1)÷2] |
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))) |
))) |
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end |
end |
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</lang>{{out}} |
</lang>{{out}} |
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<pre> |
<pre> |
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Arrangements ignoring values: |
Arrangements ignoring values: 2541801700 |
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Permutations of 28 dominos: 304888344611713860501504000000 |
Permutations of 28 dominos: 304888344611713860501504000000 |
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Permuted arrangements ignoring flipping dominos: |
Permuted arrangements ignoring flipping dominos: 774965712644240130536285719756800000000 |
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Possible flip configurations: 268435456 |
Possible flip configurations: 268435456 |
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Possible permuted arrangements with flips: |
Possible permuted arrangements with flips: 208028274458021565214007381729204817100800000000 |
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</pre> |
</pre> |
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