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I also noticed that there where no h_vectors in the old documentation... However I messed everything up with the upgrade and now nothing is working (I didn't check before the right way to do it and try to reinstall everything from the begining). This is the situation now: when I run ./sage I get a long message telling at the end:

 ImportError: cannot open shared object file: No such file or directory
Error importing ipy_profile_sage - perhaps you should run %upgrade?
WARNING: Loading of ipy_profile_sage failed.

then after running %upgrade I get the following

sage: %upgrade
> /home/emerson/sage-4.6.2/local/bin/python "/home/emerson/sage-4.6.2/local/lib/python2.6/site-packages/IPython/" "/home/emerson/sage-4.6.2/local/lib/python2.6/site-packages/IPython/UserConfig" "/home/emerson/.sage/ipython"
/home/emerson/.sage/ipython/ Unedited, installing new version
/home/emerson/.sage/ipython/ Unedited, installing new version

and then

sage: 1+1
NameError                                 Traceback (most recent call last)

/home/emerson/sage-4.6.2/local/bin/<ipython console> in <module>()

NameError: name 'Integer' is not defined

I hope you can tell me what to do now...