List-Operations on Heads other than List
- To: mathgroup at smc.vnet.net
- Subject: [mg29722] List-Operations on Heads other than List
- From: Detlef Mueller <dmueller at mathematik.uni-kassel.de>
- Date: Wed, 4 Jul 2001 18:43:40 -0400 (EDT)
- Organization: University of Kassel - Germany
- Sender: owner-wri-mathgroup at wolfram.com
Hello, The Help Browser says: Select[list, crit] picks out all elements ... Now this works fin for other Haeders thal List too. Select[Expand[P], ! NumberQ[#] &] removes the absolute Part of the Poynomial P (in my Version). Is this a dangerous Way of Programming? Greetings Detlef