Re: how to set a global assumption setting Every Varaible I use is Real?
- To: mathgroup at smc.vnet.net
- Subject: [mg55096] Re: [mg55056] how to set a global assumption setting Every Varaible I use is Real?
- From: Chris Chiasson <chris.chiasson at gmail.com>
- Date: Sat, 12 Mar 2005 02:36:44 -0500 (EST)
- References: <200503110920.EAA02123@smc.vnet.net>
- Reply-to: Chris Chiasson <chris.chiasson at gmail.com>
- Sender: owner-wri-mathgroup at wolfram.com
you could set up a pattern that fits every symbol in the global context and say that all variables fitting the pattern are elements of the real numbers you could assign that statement to a variable in another context and redefine whatever functions you want to take the assumption into account (probably simplify and full simplify) On Fri, 11 Mar 2005 04:20:31 -0500 (EST), foice <foice@n0nspammar&tiscali.it> wrote: > i'm dealing with simple trig funcions, Sin[], Cos[] and so on ... > 'm also using Conjugate and my expressions are full of > Cos[a]* > Now if a is real there's no risk to have Complex number. > I have may variables, and I would like to avoid a redefinition of > $Assuming where I have to list every varaible I use. I prefer, if > exists, somethig like: > "Dear Mathematica 5.1, > every variable I use is Real, wathever its name is ... > If I'll need complex number I'll use :ii: to enter the imaginary unit. > See you at next calculation. > Regards > Your faithfull User." > > Is it possible? > > -- Chris Chiasson Kettering University Mechanical Engineering Graduate Student 1 810 265 3161
- References:
- how to set a global assumption setting Every Varaible I use is Real?
- From: foice <foice@N0NSPAMMAR&tiscali.it>
- how to set a global assumption setting Every Varaible I use is Real?