pattern test and default value
- To: mathgroup at smc.vnet.net
- Subject: [mg5967] pattern test and default value
- From: marliesb at sci.kun.nl (Marlies)
- Date: Wed, 5 Feb 1997 21:12:11 -0500
- Organization: University of Nijmegen, The Netherlands
- Sender: owner-wri-mathgroup at wolfram.com
Hi, It is possible to do the following: x_h:v (an expression with head h and default value v) Can anyone tell me whether it is possible to have a pattern test like _?NumberQ AND have a certain default value? Regards, Marlies Brinksma