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2015-02-22 21:48:02 -0600 asked a question How to plot B-spline basis functions

Given a degree d and knot sequence t[i] I would like to be able to generate plots of all the B-spline basis functions corresponding to the specified d and t[i]. Is there a straightforward way to do this in Sage?

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2015-02-01 01:32:25 -0600 asked a question How do I register so I can use the Sage Notebooks

I am a brand new Sage user, and have installed Sage on my Mac running Yosemite. I want to use the Sage notebooks but Sage is asking me to log in with a user id and password. Where in the Sage website can I register a user id and password? I can't seem to find it.