Re: Number of Differing Digits & Another Problem (want to see different
- To: mathgroup at smc.vnet.net
- Subject: [mg76397] Re: Number of Differing Digits & Another Problem (want to see different
- From: Szabolcs <szhorvat at gmail.com>
- Date: Mon, 21 May 2007 06:03:26 -0400 (EDT)
- Organization: University of Bergen
- References: <f2mf5b$mbm$1@smc.vnet.net>
VenDiddy at gmail.com wrote:
> BitDifferences[a_, b_, n_] :=
> Count[Equal @@@
> Thread[{IntegerDigits[a, 2, n], IntegerDigits[b, 2, n]}], True]
>
> I want to see how you would do it so I can broaden my Mathematica
> perspective.
A procedural approach:
bitDifferences[a_, b_, n_] := Module[
{digsA = IntegerDigits[a, 2, n], digsB = IntegerDigits[b, 2, n]},
Sum[Boole[digsA[[i]] != digsB[[i]]], {i, n}]
]