braibant/articheck — pull request #19 by gasche (2014-02-09 15:53:20+00:00)
Title: Built-in sums and products

This pull request is a way to centralize the online discussion in this rather invasive change. I believe we'll eventually need to get something equivalent in master, but hopefully this can be discussed, simplified and better understood before. I have spent a copious amount of time rebasing against @protz additional comments, and this is a good thing as it forced me to equivalently comment the new functions.