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MathGroup Archive 2004

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Re: Working with binaries

  • To: mathgroup at smc.vnet.net
  • Subject: [mg48018] Re: Working with binaries
  • From: Luca <luca at nospam.it>
  • Date: Fri, 7 May 2004 04:29:37 -0400 (EDT)
  • References: <c77u1i$2rq$1@smc.vnet.net> <c7am4h$he6$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Jean-Michel Collard wrote:

> Luca wrote:
>> Is it possible with mathematica to work with binaries? I did it in
>> another system by typing: OutputBase := Binary. I was also trying to find
>> the function NOT, i.e. that function which gives:
>> 
>> !1 = 0
>> !0 = 1
>> 
>> I found in the help BitNot, but BitNot[1] gives me -2.
>> Thanks for any advice.
>> 
>> Luca
>> 
> 
> the mathematica book :
> 
> BitNot[n] returns -1-n
> 
> JM

Yes, but there's also written:

BitNot[n] turns ones into zeros and vice versa in the binary representation
of n.

Luca


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