Number of Differing Digits & Another Problem (want to see different ways it can be done)
- To: mathgroup at smc.vnet.net
- Subject: [mg76310] Number of Differing Digits & Another Problem (want to see different ways it can be done)
- From: VenDiddy at gmail.com
- Date: Sat, 19 May 2007 04:45:08 -0400 (EDT)
I just purchased a copy of Mathematica and I've been learning it for
about a week now. You can expect that I will be posting a lot of
questions. One thing I've noticed is that there are so many different
ways to do the same thing!
Here is a function I came up with that calculates how many binary
digits two numbers differ in:
BitDifferences[a_, b_, n_] :=
Count[Equal @@@
Thread[{IntegerDigits[a, 2, n], IntegerDigits[b, 2, n]}], True]
For example 5 = 101 differs from 6 = 111 by one digit (the middle
digit).
I want to see how you would do it so I can broaden my Mathematica
perspective.
Thanks.
- Follow-Ups:
- Re: Number of Differing Digits & Another Problem (want to see different ways it can be done)
- From: Andrzej Kozlowski <akoz@mimuw.edu.pl>
- Re: Number of Differing Digits & Another Problem (want to see different ways it can be done)
- From: "Patrick Scheibe" <mai99dnn@studserv.uni-leipzig.de>
- Re: Number of Differing Digits & Another Problem (want
- From: Carl Woll <carlw@wolfram.com>
- Re: Number of Differing Digits & Another Problem (want to see different ways it can be done)