This Q&A is part of a weekly series of posts highlighting common questions encountered by technophiles and answered by users at Stack Exchange, a free, community-powered network of 100+ Q&A sites.

In this article, we study some new characterizations of primitive recursive functions based on restricted forms of primitive recursion, improving the pioneering work of R. M. Robinson and M. D.

When Recursion launched in 2013, the fledgling biotech’s goal was to turn machine vision loose on images of cells, at scale, to better understand the biology of disease. Exscientia, founded the year ...