> [...] people are confused that when > they create a matrix with matrix(3, range(9)), for example, that the > echelon_form is not the rref output that they get from most any other > program they have ever used [...] > What do people think about making the default ring for matrices QQ? > I have no objections to making QQ the defailt ring for matrices. However, I don't think this resolves the problem entirely.
A part of the confusion stems from echelon_form doing entirely different things based on the type of argument it gets. I would prefer echelon_form to always use fractions, and have some other function avoid the fractions. Another solution I could get behind is for echelon_form to have a parameter for whether to use fractions, and have the default be to use them. Cheers Bjarke --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
