-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 This is really upsetting:
sage: plot(lambda x: x^(1/3), -5, 5) - --------------------------------------------------------------------------- <type 'exceptions.TypeError'> Traceback (most recent call last) /home/ghitza/colby/ma311/<ipython console> in <module>() /opt/sage/local/lib/python2.5/site-packages/sage/plot/plot.py in __call__(self, funcs, *args, **kwds) ~ 3349 xmax = args[1] ~ 3350 args = args[2:] - -> 3351 G = self._call(funcs, (xmin, xmax), *args, **kwds) ~ 3352 else: ~ 3353 print "there were %s extra arguments (besides %s)" % (n, funcs) /opt/sage/local/lib/python2.5/site-packages/sage/plot/plot.py in _call(self, funcs, xrange, parametric, polar, label, **kwds) ~ 3419 del options['plot_division'] ~ 3420 while i < len(data) - 1: - -> 3421 if abs(data[i+1][1] - data[i][1]) > max_bend: ~ 3422 x = (data[i+1][0] + data[i][0])/2 ~ 3423 try: <type 'exceptions.TypeError'>: 'float' object is unsubscriptable - ------------------------------------------------------------------------- Yes, it's related to tickets #2038 and #2045, but much worse, because in this case not only is the error message "unfriendly", but it's also unwarranted: the cube root is a well-defined function on all of RR, so it should be possible to get a plot of it on the interval [-5,5]. This probably got broken when (-1)^(1/3) stopped being -1. Alex - -- Alexandru Ghitza Assistant Professor Department of Mathematics Colby College Waterville, ME 04901 http://bayes.colby.edu/~ghitza/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.7 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHulB+dZTaNFFPILgRApr2AJ4p1Vc9PimTKNsFUS/Lw32tSbAvDgCfYjsF ol3u1oW3kpRM9dK/o08+UAw= =ZkrJ -----END PGP SIGNATURE----- --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
