Re^2: Calculate propabilities without recursion? Coin toss.

Thanks allot, using bignum works. But makes the whole very very slowly. I want to run this script up to 10000 times with n=up to 5000. This will take weeks... Any suggestions?

Comment on Re^2: Calculate propabilities without recursion? Coin toss.

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Re^3: Calculate propabilities without recursion? Coin toss. by happy.barney (Friar) on Mar 16, 2011 at 14:50 UTC
Memoize (Attribute::Memoize) `fac`. Btw: `n!/k! = List::Util::reduce { $a * $b } $k+1 .. $n`	[reply] [d/l] [select]
Re^3: Calculate propabilities without recursion? Coin toss. by ikegami (Patriarch) on Mar 16, 2011 at 14:49 UTC
It wouldn't surprise me if 5000! is larger than the number of atoms in the universe. Would you care to reconsider that?	[reply]
Re^4: Calculate propabilities without recursion? Coin toss. by SuicideJunkie (Vicar) on Mar 16, 2011 at 17:49 UTC
In fact, a measly 65! = 8x10⁹⁰, which is significantly bigger than the number of atoms in the visible universe (10⁷⁸ to 10⁸²).	[reply]