Sympy printing in the example notebook

[jakobgager]

Related to #3485

Using the proposed initialization with ipython 1.0.0

from sympy.interactive import printing
printing.init_printing()

does only work with sympy 0.7.3 (current stable) but not with 0.7.2. Latter requires an explicit use_latex=True statement
init_printing(use_latex=True).

Maybe this should be mentioned somewhere.

[minrk]

We currently use init_printing(), and it looks like that's what you are proposing, so there's nothing to change. Shall we close?

[jakobgager]

Well unfortunately the update I wrote (deleted in the meanwhile) was really confusing 😕
If I remember correctly, init_printing() didn't work with sympy 0.7.2, here a init_printing(use_latex=True) was necessary. With 0.7.3 everything works fine, so I guess it is ok to close this, as 0.7.3 was released about 7 month ago.