#2562: [with patch, needs review] minor symbolic doc things
---------------------------+------------------------------------------------
 Reporter:  zimmerma       |       Owner:  was                
     Type:  enhancement    |      Status:  new                
 Priority:  minor          |   Milestone:  sage-4.1.2         
Component:  calculus       |    Keywords:                     
 Reviewer:  Burcin Erocal  |      Author:  Karl-Dieter Crisman
   Merged:                 |  
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Comment(by zimmerma):

 Burcin, with respect to your example:
 {{{
 sage: 1/3 - RR(1/3).exact_rational()
 1/54043195528445952
 }}}
 the problem is that when you type RR(1/3), say a is this object, then Sage
 does not know it comes from 1/3!
 If you consider that you only have a=RR(1/3), but you don't know how it
 was obtained, then every such a is
 an exact rational, because the form mantissa*2**exp is always an exact
 rational.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/2562#comment:7>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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