I have had some issues in the tutorial but I am a newbie so I wanted to check here before thinking these were errors in Sage rather than errors in me.
1) at http://www.sagemath.org/doc/tutorial/tour_algebra.html#euler-s-method-for-systems-of-differential-equations it seems to met that z(1) \aprox 0.65 NOT 0.75 2) regarding polynomials in the tutorial: http://www.sagemath.org/doc/tutorial/tour_polynomial.html Does the following session: sage: R = QQ['t'] sage: t in R --------------------------------------------------------------------------- NameError Traceback (most recent call last) /home/brett/Projects/SAGE/sage-4.1/<ipython console> in <module>() NameError: name 't' is not defined sage: S.<t> = QQ['t'] sage: t in S True sage: t in R True contradict the statement "However, this does not define the symbol t for use in Sage, so you cannot use it to enter a polynomial (such as t^2+1) belonging to R"? 3) In Linear Algebra (http://www.sagemath.org/doc/tutorial/ tour_linalg.html#sparse-linear-algebra) I am not sure what "The multi- modular algorithm in Sage is good for square matrices (but not so good for non-square matrices):" is supposed to mean since I do not notice any difference in output. What should I expect to see differently? 4) In "Timing commands" (http://www.sagemath.org/doc/tutorial/ interactive_shell.html#timing-commands) the difference between "%time" and "time" is never explained. Calling time? and %time? seem to indicate that these are the same, but the tutorial's switch from one to the other with no explanation is a bit confusing. thanks brett --~--~---------~--~----~------------~-------~--~----~ 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 URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
