September 2017 Update

This commit is contained in:
Ingy döt Net 2017-09-23 10:01:46 +02:00
parent bba7bfd280
commit ba8067c3b7
14570 changed files with 153136 additions and 63871 deletions

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@ -0,0 +1 @@
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);