Classes needing LaTeX printing

[oscargus]

The following classes require a LaTeX printer method

• FreeGroupElement
• PermutationGroup
• Ordinal (and "all" methods related to it)
• Fraction (not a sympy class, but can still be useful, see string printer)
• Almost all classes in stats. Most distributions can have a better representation. E.g. Uniform as U(start, end). ProductSpaces etc, not so clear. Here is a list of distributions where most of them have notation information: https://en.wikipedia.org/wiki/Probability_distribution