Re: solve errors...
- To: mathgroup at smc.vnet.net
- Subject: [mg43064] Re: [mg43046] solve errors...
- From: sean kim <shawn_s_kim at yahoo.com>
- Date: Sun, 10 Aug 2003 01:46:52 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Hi Dr Hollis. Thanks again for the comments. :D And if you don't mind me bothering you once again for some other questions... > Certainly. Although some may not be meaningful, depending on the > application. For instance, you might want only nonnegative solutions, > and you probably want only real ones. 1. How do I tell the mathematica to ignore the solutions that are not real and not positive? isn't there a option for solve? I remember something vaguely about some kinda options for solve that allow you to do that... I can't remember the details or where I saw them.. 2. i was going to ask this the other day, but the stopping test that you used in reply to sabrina's question... where is that from? can i get some more information on that some place? It sounded like she wanted to get the EC50 of some kinda enzyme. so if x[t] is at it's half maximal, then it's called the EC50 for the ezyme noted as the x[t] in enzymatics. ( lotta biologist are in this forum. that's so funny) 3. your DE package seems to cause soem errors in my Mathematica 4.0 <<DiffEqs`DEGraphics` SetDelayed::"write": "Tag \!\(FilterOptions\) in \ \!\(FilterOptions[\(\(command_Symbol, options___\)\)]\) is Protected." SetDelayed::"write": "Tag \!\(FilterOptions\) in \ \!\(FilterOptions[\(\(opts_List, options___\)\)]\) is Protected." is this a Mathematica version specific thing? can i still use it? even with the errors shown? thank you very much in advance. sean ===== when riding a dead horse, some dismount. while others... write memoirs on the subject of riding a dead horse. __________________________________ Do you Yahoo!? Yahoo! Calendar - Free online calendar with sync to Outlook(TM). http://calendar.yahoo.com