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Re: Quit versus Clear["Global`*"]

• To: mathgroup at smc.vnet.net
• Subject: [mg121221] Re: Quit versus Clear["Global`*"]
• From: DrMajorBob <btreat1 at austin.rr.com>
• Date: Sun, 4 Sep 2011 18:06:20 -0400 (EDT)
• Delivered-to: l-mathgroup@mail-archive0.wolfram.com
• References: <201109031205.IAA05310@smc.vnet.net> <j3u7r6$a88$1@smc.vnet.net>
• Reply-to: drmajorbob at yahoo.com

Remove[x] perniciously changes the definition of symbols that mention x,  
replacing x with Removed[x] and making those definitions useless. Clear[x]  
removes definitions for x, but leaves alone other symbols that mention  
it... which, to me, seems far more sensible.

After Clear[x], other symbols referring to x can still be used (with or  
without new definitions for x). After Remove[x], all those symbols are  
just trash, lying around waiting for Quit to clear them away.

Bobby

On Sun, 04 Sep 2011 03:12:58 -0500, AES <siegman at stanford.edu> wrote:

> In article <j3u7r6$a88$1 at smc.vnet.net>,
>  Murray Eisenberg <murray at math.umass.edu> wrote:
>
>> First, Clear, whether for a single object or an entire list of objects,
>> does not remove their Attributes, e.g., just their values. You might
>> want ClearAll instead.
>
> And how do either of those differ from Remove?
>


-- 
DrMajorBob at yahoo.com

• References:
  • Quit versus Clear["Global`*"]
    • From: Themis Matsoukas <tmatsoukas@me.com>