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gem install --user-install symengine -v 0.0.0 --verboseworks for me
(which is intuitive) will get the faulty version of the gem. If we are planning to stick to 0.0.0, is there some way 0.0.1 can be removed?
gem install symengine
@jksuom Thanks a lot for writing down your valuable suggestions. @certik would definitely be interested.
I think your approach should be faster for rationals. If I remember correctly, mathematica also uses this approach, thought their representation is dense.