Hello, If I am right, the symbolic manipulations of Sage come from the (py)ginac librairies.
In ginac documentation I find very intersting functions for my use of expressions : is_a<numeric> is_a<real> is_a<rational> There are about 30 tests for possible types. The types I can test by Expression.any_tests_I_find_iwth_tab() in sage seems very poor. So I prefer to see what I can do with the pyginac librairie, but use it from sage in emacs or in firefox. Is it possible to call theses functions from sage ? or must I insert a new "module" in sage ? I want to write functions in (the interpreter of) sage with theses ginac tests. F. --~--~---------~--~----~------------~-------~--~----~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
