[plt-scheme] Undefine variable?

I think you can use let instead of define.
And I would like to know if there's undefine too.
----- Original Message ----- 
From: "Zbyszek Jurkiewicz" <zbyszek at duch.mimuw.edu.pl>
To: <plt-scheme at qua.cs.brown.edu>
Sent: Friday, February 28, 2003 8:36 PM
Subject: [plt-scheme] Undefine variable?


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> Is it possible to undefine (or unset) "global" variable in current 
> namespace?
> 
> In some package I create at execution time a lot of variables and from 
> time to time want to garbage clean some of them. Variables are created
> by namespace-set-variable-value!
> 
> Zbyszek Jurkiewicz
> 
> 
>