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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
199093 changed files with 3378972 additions and 0 deletions

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choose(n, k) := product(k + 1 ... n) / product(1 ... n - k);

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choose(n,k) := binomial(n, k, 1, 1);
binomial(n, k, i, result) :=
result when i > k else
binomial(n, k, i + 1, (result * (n - i + 1)) / i);