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:::::: Sounds good to me. [[User:CRGreathouse|CRGreathouse]]<small> ([[User talk:CRGreathouse|t]] | [[Special:Contributions/CRGreathouse|c]])</small> 16:17, 11 June 2009 (UTC)
::::: That integral is NOT in SymPy's heuristic table (otherwise, it wouldn't take so long to compute it :). It is being computed by SymPy's implementation of Bronstein's poor-man's integrator, which is based on the Risch-Norman algorithm. Actually, I wonder if we should be looking at the poor-man's integrator here (the original code is in Maple syntax).
::::: But if you are looking for more examples of hard integrals, you might try some of the other ones from Bronstein's integration tutorial (see the references of this article, it's freely downloadable on his website).
::::: And by the way, I got the integral with x + 1 to work just fine.<font color="#008888">[[User:Asmeurer|Asmeurer]] ([[User talk:Asmeurer|talk]] ♬ [[Special:Contributions/Asmeurer|contribs]])</font> 00:57, 14 November 2010 (UTC)
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