MathGroup Archive 2005

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Operating with binary numbers

  • To: mathgroup at smc.vnet.net
  • Subject: [mg59089] Re: Operating with binary numbers
  • From: dh <dh at metrohm.ch>
  • Date: Thu, 28 Jul 2005 02:27:46 -0400 (EDT)
  • References: <dc77gl$k5p$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,
2^^... and BaseForm are only concerned with input and output. 
Internally, the number representation is always the same.
If you want get at the bits, you need:

IntegerDigits and FromDigits

if you are using reals:
RealDigits and FromDigits

sincerely, Daniel

Wishmaster wrote:
> Hello,
> 
> I found that you can represent binary numbers in Mathematica with this:
> 
>  binary = 2^^110110101010111010
> 223930
> 
> And BaseForm[binary, 10] returns the number in decimal form
>   223930
> 
> I'd like to know if is there some function to test if a given bit of the 
> binary number is on, and to do operations like "shifting" the binary number. 
> I looked at the help but can't find anything.
> 
> I use Mathematica 5.0 on Windows XP.
> 
> Thanks.


  • Prev by Date: Re: silly questions?
  • Next by Date: Re: Simplification question
  • Previous by thread: Re: Operating with binary numbers
  • Next by thread: Re: Operating with binary numbers