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Re: how to set a global assumption setting Every Varaible I use is Real?
I forgot, you should look at the real only package, under miscellaneous. Needs["Miscellaneous`RealOnly`"] On Fri, 11 Mar 2005 09:13:31 -0500, Chris Chiasson <chris.chiasson at gmail.com> wrote: > 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 > -- Chris Chiasson Kettering University Mechanical Engineering Graduate Student 1 810 265 3161