If anyone is interested in seeing some of the broad ways that people use SymPy, at least in academic settings, I would recommend setting up a Google Scholar alert for SymPy https://scholar.google.com/scholar_alerts?view_op=list_alerts&hl=en.
Here is a nice example, which is a pure math paper which is relatively simple (anyone should be able to follow it), which uses SymPy to do a calculation in a proof near the end. https://arxiv.org/abs/1606.05398 Aaron Meurer -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CAKgW%3D6KuU4q1-GLPZZzZyViJbf%3DeU87Q6SYmLsmZBPqY3W_Sog%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
