Re: Guessing "exact" values
- To: mathgroup at smc.vnet.net
- Subject: [mg76171] Re: [mg76079] Guessing "exact" values
- From: Murray Eisenberg <murray at math.umass.edu>
- Date: Thu, 17 May 2007 05:59:12 -0400 (EDT)
- Organization: Mathematics & Statistics, Univ. of Mass./Amherst
- References: <200705160920.FAA29604@smc.vnet.net>
- Reply-to: murray at math.umass.edu
As I remember, at IMS'06 (Avignon) Stephen Wolfram (via remote link-up) played with a function to do just that. Did I remember correctly? If so, I cannot recall the name of the function, so I don't know whether the function made it into 6.0. The closest thing I can find is RootApproximant, but that doesn't seem to "recognize" an expression involving a transcendental number. Szabolcs wrote: > "Another computer algebra system" has a function, identify(), which > attempts to guess the exact expression that evaluates to a particular > numerical value. > > Example: > > In[1]:= N[3Pi+3/2,10] > > Out[1]= 10.92477796 > > > identify(10.92477796); > 3 > - + 3 Pi > 2 > > Is there a package with similar functionality for Mathematica? > > Szabolcs > -- Murray Eisenberg murray at math.umass.edu Mathematics & Statistics Dept. Lederle Graduate Research Tower phone 413 549-1020 (H) University of Massachusetts 413 545-2859 (W) 710 North Pleasant Street fax 413 545-1801 Amherst, MA 01003-9305
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- From: Szabolcs <szhorvat@gmail.com>
- Guessing "exact" values