collect derivatives
- To: mathgroup at smc.vnet.net
- Subject: [mg23259] collect derivatives
- From: Robert <robert.schuerhuber at gmx.at>
- Date: Sat, 29 Apr 2000 22:05:02 -0400 (EDT)
- Organization: Vienna University of Technology, Austria
- Sender: owner-wri-mathgroup at wolfram.com
is there a way to use "collect[]" to collect all terms with a specific derivative, e.g. to produce something like z''[x] u[x] + z'[x] (u'[x]+u[x]) + z[x] ? thanks, robert