[Date Index] [Thread Index] [Author Index]

Re: Baffling change to partial derivative in version 5.1

• To: mathgroup at smc.vnet.net
• Subject: [mg61713] Re: Baffling change to partial derivative in version 5.1
• From: "Scout" <mathem at tica.org>
• Date: Thu, 27 Oct 2005 05:01:38 -0400 (EDT)
• References: <djcgvr$6n9$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

"Steven HANCOCK" <Steven.Hancock at cern.ch> news:djcgvr$6n9$1 at smc.vnet.net...
>
> Merely changing the spelling of the variable from t to time does not
> return zero in version 4.2.
>                             Thanks, Steve.
>

I will never abandon Mathematica 4.0!

 In[1]:= $Version
Out[1]= "4.0 for Microsoft Windows (April 21, 1999)"

In[2]:= D[x y, time, NonConstants -> {x}]
Out[2]= y D[x, time, NonConstants -> {x}]