Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2007
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2007

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

Search the Archive

Re: ComplexityFunction

  • To: mathgroup at smc.vnet.net
  • Subject: [mg74201] Re: ComplexityFunction
  • From: "dimitris" <dimmechan at yahoo.com>
  • Date: Wed, 14 Mar 2007 03:48:56 -0500 (EST)
  • References: <et37d1$qt3$1@smc.vnet.net>

On Mar 12, 11:44 am, Christopher Arthur <caa0... at unt.edu> wrote:
> After an inspiring message on how to code for TransformationFunctions,
> I made a set of such functions to apply to my logical system.  Now,
> however, I am not sure how to inform Simplify as to which kinds of
> forms are prefered.  I looked at the help file for ComplexityFunction,
> but it is not well documented in 5.2.  Can someone provide a more
> practical look at this option?  From the help file I gather that it is
> supposed to assign a score to intermediate forms to decide if its
> making progress.  But after noodling with it a bit I can't make my
> output change at all.
>
> Some things to ask:  is the score a real number and can it be negative?
>   Is a lower score supposed to mean a more simplified form?  By the
> way, when we use a list of TransformationFunctions, can we assume that
> Simplify is allowed to apply all or any of them repeatedly and in any
> order it likes?  If not, is there a way to tell it to do this?  Regards,
>
> Christopher Arthur

Not being able to answer all of your questions I will strongly suggest
you to search in the archives
for relevant posts of  Adam Strzebonski  from WRI and Andrzej
Kozlowski.




  • Prev by Date: Re: Replacement question
  • Next by Date: RE: How do I write tabular output?
  • Previous by thread: ComplexityFunction
  • Next by thread: Write a computer program to using Simpson's rule (Have to revise)