So, for my Summer of Code project, I'm writing a submodule to generate equations of motion for multibody systems. Sometimes the expressions in these equations are very large. I'm finding some of these expressions are prohibitively large when printing. Here is an example of one element in one of the output matrices generated by my code: http://pastebin.com/Vs9qsXMb Generating the string for the entire matrix takes a few minutes (printing that string occurs in no appreciable time though). I also profiled the code when printing the complete matrix: http://pastebin.com/c8hhdc46 I'm not exactly sure what to make of the results of the profiling though. Has anyone else encountered issues like this? Or have any thoughts on the printing of large expressions?
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