Hi, x = polygen(<ring>) returns an object of type Polynomial_generic_dense, while <ring>.inject_variables() injects x of type Polynomial_rational_dense.
Why the difference? This was a problem for a student today, who was using polygen(), whose returnee will not simplify x^3/x^2, whereas inject_variables() did. regards john perry --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@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-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---