       RE: Converting Integer to Binary and using bits

• To: mathgroup at smc.vnet.net
• Subject: [mg29423] RE: [mg29391] Converting Integer to Binary and using bits
• From: "Wolf, Hartmut" <Hartmut.Wolf at t-systems.de>
• Date: Tue, 19 Jun 2001 05:35:39 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

```BaseForm[anInteger, aBase] is not what you need, since this is only a
printing form (i.e. an appearance to the eye of an unchanged object).
Possibly IntegerDigits[anInteger, 2] may give you what you need: a list of
binary digits, you can Map over or Scan through.

-- Hartmut

> -----Original Message-----
> From: Flip at safebunch.com [mailto:Flip at safebunch.com]
To: mathgroup at smc.vnet.net
> Sent: Saturday, June 16, 2001 8:48 AM
> To: mathgroup at smc.vnet.net
> Subject: [mg29423] [mg29391] Converting Integer to Binary and using bits
>
>
> Hi All,
>
> I know that there is BaseForm[a,b] to convert between bases,
> but I need some
> more functionality.
>
> I need to be able to convert a large integer (300 - 600
> digits) long to binary,
> know the number of digits (for a looping variable) and then
> use each individual
> bit (from high bit to low bit).
>
> For example, n = 11, so 11 base 10 = 1011 base 2.
>
> The length = 4.
>
> With the for loop, a test of each bit will be done (in this
> example 1, 0, 1, 1).
>
> Can someone give any direction on how to do this?  Thanks ... Flip
>
>

```

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