http://doc.sagemath.org/html/en/reference/calculus/sage/calculus/var.html#sage.calculus.var.function
-- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-support/6a21883f-c12d-49b1-9d56-5aaf697d32db%40googlegroups.com.