Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2004
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2004

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: defining variables as Real

  • To: mathgroup at smc.vnet.net
  • Subject: [mg52873] Re: defining variables as Real
  • From: "Drago Ganic" <drago.ganic at in2.hr>
  • Date: Wed, 15 Dec 2004 04:27:04 -0500 (EST)
  • References: <cpjom6$nf1$1@smc.vnet.net> <cpmik0$ofv$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Isn't that package now depreciated (because we now have the assumption 
mechanism)? It's interesting that it's still shipped with the production 
release.
drago

"Scout" <user at domain.com> wrote in message news:cpmik0$ofv$1 at smc.vnet.net...
> "symbio" <symbio at has.com> ha scritto nel messaggio
> news:cpjom6$nf1$1 at smc.vnet.net...
>> Is there anyway in Mathematica to define a variable as say Real or
>> Imaginary
>> or greater than zero, etc.. in the very beginning of all calculations and
>> keep it that way throughout, instead of having to use simplify with
>> assumptions each time?
>>
>
> Loading the package <<Algebra`ReIm`
> you can declare any symbol to have an imaginary or a real part of zero
> for a real or imaginary number rispectively.
> i.e. x /: Im[x] = 0  declares the symbol x that is now treated as a real
> number.
> Is that ?
>
> ~Scout~
> 



  • Prev by Date: Re: pdf[d,x] vs. function(x)
  • Next by Date: Re: pdf[d,x] vs. function(x)
  • Previous by thread: Re: defining variables as Real
  • Next by thread: Re: Re: defining variables as Real