Re: Leading Zeros? (question rephrased)
- To: mathgroup at smc.vnet.net
- Subject: [mg54599] Re: Leading Zeros? (question rephrased)
- From: Paul Abbott <paul at physics.uwa.edu.au>
- Date: Thu, 24 Feb 2005 03:21:03 -0500 (EST)
- Organization: The University of Western Australia
- References: <cv6sms$6p2$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
In article <cv6sms$6p2$1 at smc.vnet.net>, AES <siegman at stanford.edu>
wrote:
> Instead I'm asking, suppose I type
>
> y = {001,002,003};
>
> into a newly opened "virgin" instance of Mathematica, without defining
> any special formats or rules before I do this.
>
> Are the leading zeros that I type into this list captured and stored
> somehow by Mathematica?
>
> Or is the default response that they're ignored and lost forever? (As I
> believe they are.)
They are lost but they are not ignored -- they are definitely parsed.
You can use $PreRead to see this:
$PreRead = (Print[FullForm[#]]; #) &;
{001,002,003}
(Note that the output you get depends upon whether the Input cell
containing {001,002,003} is StandardForm, InputForm, or TraditionalForm).
Cheers,
Paul
--
Paul Abbott Phone: +61 8 6488 2734
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