Created
August 23, 2018 01:44
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Peasant multiplication in Erlang
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| -module(multiply). | |
| -export([mul/2]). | |
| mul(A, B) -> mul(A, B, 0). | |
| mul(_, 0, C) -> C; | |
| mul(A, B, C) when B rem 2 == 1 -> mul(A, B-1, A+C); | |
| mul(A, B, C) -> mul(A + A, B div 2, C). |
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