[Maxima-bugs] [ maxima-Bugs-920174 ] ratfac/algebraic simplification issues

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Bugs item #920174, was opened at 2004-03-20 14:11
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Stavros Macrakis (macrakis)
Assigned to: Nobody/Anonymous (nobody)
Summary: ratfac/algebraic simplification issues

Initial Comment:
ratfac:true$

expr: rat((1+%i)^2/2) $

ratfac:false$ algebraic:true$

rat(expr) => 2*%i/2

Should of course be %i.

-------------------

Note that rat(ex) resimplifies if ratfac has become false, 
but rat(ex) does *not* resimplify if algebraic has 
become true:

   ratfac:true$
   ex0: rat(x+1)^2$
   ratfac:false$
   rat(ex0) => expanded

   algebraic:false$
   ex1: rat(%i)^2$
   algebraic:true$
   rat(ex1) => %i^2  NOT resimplified

Be sure you don't use EV when testing these things, 
because EV ratdisreps, so that even with 
algebraic:false, ev(ex1)=>-1.


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