-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Andy,
I had the exact same question a few days ago. There are many issues involved here, but the short answer to your question (provided by Carl Witty) is: you can plot x^(1/3) with show(plot(lambda x : RR(x).nth_root(3), -10, 10), figsize=[5,5], ymin=-10, ymax=10) You don't need to specify xmin and xmax in show since they're given in the plot command. Best, Alex Andy wrote: | I am interested in the use of Sage as a teaching tool at all grade | levels. At the moment, I'm trying to weave Sage into an introductory | algebra curriculum. | | I can graph all the basic functions with plot(x), replacing x with | x^2, x^3, 1/x, etc. The one I can't get to work is x^(1/3). I've | tried to express the cube root function several different ways. The | expression I'm using now is: | | sage: | show(plot(x^(1/3),-10,10),figsize=[5,5],xmin=-10,xmax=10,ymin=-10,ymax=10) | | I receive the error message "TypeError: 'float' object is | unsubscriptable" | | Also, is the expression above the most succinct way to generate a | graph with this kind of view, x and y ranging -10 to 10? | | Thanks for any advice. | | Andy | | | - -- 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 iD8DBQFHvtngdZTaNFFPILgRAvbjAJ9qlM5R2UnmCHwOMV2HOlhg+LcwZACcC21K Mrx/wRMSjGXeYz2KpkXN0Xo= =O3v+ -----END PGP SIGNATURE----- --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
