I have no idea how this thing gives this accurate result without memory overflow. For desktop computers only a few CAS program can do this.


For example, FriCAS appears to give a wrong answer for this.

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@ldbeth i have not performed any checks but, are you sure? maybe they are actually equal?

@oneofvalts Welp FriCAS uses a somewhat awkward mechanism for ODE, that the function symbol needs to be constructed differently. I took the result as an equation meaning XXX = 0 and try solve it and it turns out the result should be correct.

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