Services & ResourcesWolfram ForumsMathGroup Archive

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

Mixed derivative button on basic input palette

• To: mathgroup at smc.vnet.net
• Subject: [mg40659] Mixed derivative button on basic input palette
• From: wself at msubillings.edu (Will Self)
• Date: Sat, 12 Apr 2003 03:11:27 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

Would you try the mixed derivative button on your basic input palette
and see if it works?  Click on the button and put x and y in the two
subscripts, then put x^3y^4 in the box to the right.  I get 0, both in
versions 4.0 and 4.2. It seems that the Wolfram people could have
fixed this bug by now.

Of course, the kernel is fine, and 
D[x^3y^4, x, y] gives the correct output 12x^2y^3.

I hope I'm not flogging a dead horse.  I did a search but found
nothing on this.

Thanks,

Will

• Follow-Ups:
  • Re: Mixed derivative button on basic input palette
    • From: Dr Bob <majort@cox-internet.com>