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Re: Re: Subscripts, Doh!!!

  • To: mathgroup at smc.vnet.net
  • Subject: [mg19348] Re: [mg19269] Re: Subscripts, Doh!!!
  • From: Mike Tiller <mtiller at ford.com>
  • Date: Fri, 20 Aug 1999 23:09:31 -0400
  • Organization: Ford Motor Company
  • References: <7o5ier$rme@smc.vnet.net> <7oba5o$3p6@smc.vnet.net> <"199908060358.XAA08108"@smc.vnet.net> <v04210100b3d0c0366e0b@[172.16.41.9]> <199908120524.BAA04506@smc.vnet.net.> <7p010a$76o@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Carl Woll <carlw at u.washington.edu> writes:

<Comments on changing attributes on Subscript>

> So what do you think? Are there any major problems with the above ideas?

Going back to the start of this thread, does this solve the problem of
taking the derivative of a subscript?  I didn't seem to for me.  I did
this:

ClearAll[Subscript]
SetAttributes[Subscript,{HoldFirst}]
Dt[Subscript[x,1],t]

Perhaps these ideas were not intended to address manipulations like
this.  I guess I just wanted to be clear on that.

> Carl Woll
> Dept of Physics
> U of Washington

-- 
Michael Tiller
Ford Motor Company



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