[plt-scheme] Help with #0 and #0# notation in the REPL

From: Matthias Felleisen (matthias at ccs.neu.edu)
Date: Mon Jan 28 22:13:28 EST 2008

On Jan 28, 2008, at 10:07 PM, hendrik at topoi.pooq.com wrote:

> On Mon, Jan 28, 2008 at 07:29:10PM -0600, Robby Findler wrote:
>> They are a form of definition and use that you can use in quoted
>> constants. In this case, it means that the cdr of that pair is the
>> same as the pair itself. The "#0=" is in introduction of the name and
>> "#0#" is the use of the name. In general the "0" can be natural
>> number.
> I can use this in my own code?  It's not just something used for  
> output?

Everything we output, we input. 

Posted on the users mailing list.