Rational variable
 
  
 
  
 
 
 
 
 
 
    
        
        asked 2 years ago  
 
 AlAnGeTo gravatar image  
 
 
 
 
 
How would one define the domain of a symbolic variable to be rational? For a real variable a it would be var('a', domain='real') or var('a', domain='RR'). However, it seems that the domain can only be 'complex', 'real', 'positive' or 'integer'. Is there a reason for this and how would one get around this if one needs to define a rational variable?
 
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Maxima can declare some variables as rational or irrational, but this has not (yet) be implemented in Sage.
This might be a worthwhile addition for the parts of Sage that get subcontracted to Maxima. You may try to post on sage-devel...
Emmanuel Charpentier gravatar imageEmmanuel Charpentier (
    
        2 years ago
    )
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