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Re: work?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg120845] Re: work?
  • From: Murray Eisenberg <murray at math.umass.edu>
  • Date: Fri, 12 Aug 2011 05:07:16 -0400 (EDT)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • References: <j206b9$71e$1@smc.vnet.net> <201108111155.HAA08986@smc.vnet.net>
  • Reply-to: murray at math.umass.edu

I'm not seeing any such error message in 8.0.1.

On 8/11/11 7:55 AM, David Bailey wrote:
> On 11/08/2011 10:11, Themis Matsoukas wrote:
>> According to http://reference.wolfram.com/mathematica/howto/ClearMyDefinitions.html, Clear["Global`*"] clears all the definitions made during the current Mathematica session. However,
>>
>> a = 1;
>> Clear["Global`*"]
>> a
>>
>> 1
>>
>> How is Clear["Global`*"] supposed to work?
>>
>> Thanks
>>
>
> This looks to me like a bug introduced at 8.0. The command Clear["Global`*"]
> seems to work at 7.0, but at 8.0 it generates an error message:
>
> Clear::wrsym: Symbol TimeStamp is Protected.>>
>
>
> This seems to be because at 8.0, Wolfram have accidentally introduced a
> protected symbol into the Global` context:
>
> In[9]:= Context[TimeStamp]
>
> Out[9]= "Global`"
>
> In[10]:= Attributes[TimeStamp]
>
> Out[10]= {Protected}
>
> Presumably this aborts the Clear command part way through (though of
> course many commands don't give up if they hit an error).
>
> David Bailey
> http://www.dbaileyconsultancy.co.uk
>

-- 
Murray Eisenberg                     murray at math.umass.edu
Mathematics & Statistics Dept.
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University of Massachusetts                413 545-2859 (W)
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