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.