Created
January 6, 2012 18:40
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Erlang factorial
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| -module(recursive). | |
| -export([fac/1, tail_fac/1]). | |
| fac(N) when N == 0 -> 1; | |
| fac(N) when N > 0 -> N*fac(N-1). | |
| tail_fac(N) -> tail_fac(N,1). | |
| tail_fac(0,Acc) -> Acc; | |
| tail_fac(N,Acc) when N > 0 -> tail_fac(N-1,N*Acc). |
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