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I recently ported the Hardcaml_step_testbenchlibrary, one of the libraries thatwe use at Jane Street for Hardcaml simulations, from using monads to using alg...

One of the problems we wrestle with at Jane Street is how tounderstand and manage the costs associated with the positions we hold:things like margin, financi...

I’ve recently been thinking about the world of JavaScript and web applications.That’s odd for me, since I know almost nothing about the web. Indeed, JaneStre...

I’m pleased to announce the release ofIncremental (wellcommented mlihere),a powerful library for building self-adjusting computations, i.e.,computations that...

You don't have to be writing an interpreter or some other kind of abstract code to profit from some phantom types. Suppose you have two or m...