Re: Default values / optional parameters
- To: mathgroup at smc.vnet.net
- Subject: [mg22074] Re: Default values / optional parameters
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Sat, 12 Feb 2000 04:04:32 -0500 (EST)
- Organization: Universitaet Leipzig
- References: <880g4a$4so@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi, why not to use the FullForm[ Optional[somepattern,somevalue] ? Regards Jens Hermann Klocker wrote: > > [Contact the author to obtain the notebook mentioned - moderator] > > The sample notebook shows how two functions defined in a very similar > manner behave differently when using optional parameters. Question: How > can I define a function whose optional parameter is a pattern requiring > a specific head and has a given default value? Help says this is x_h:v > but my example says that this does not work in some cases. > > ________________________________________________ > Dr. Hermann Klocker Phone/Fax: +43-5672-65724 > Mobile: +43-676-480 57 67 > Gymnasiumstrasse 5/5, A-6600 Reutte, AUSTRIA > mailto:h.klocker at tirol.com > http://www.ausserfern.at/klocker > ________________________________________________