+ As with Scheme, it's helpful to also have rlwrap installed, and to start OCaml as `rlwrap ocaml`. This gives
+ you a nice history of the commands you've already typed, which you can scroll up and down in with your
+ keyboard arrows.
+
+
+## Getting Haskell ##
+
+This last step is less crucial than the others, since we will be focusing
+primarily on Scheme and OCaml. However we, and the readings you come across,
+will sometimes mention Haskell, so it might be worth your installing this too,
+so that you have it available to play around with.
+
+Haskell is used a lot in the academic contexts we'll be working through. At one point, Scheme
+dominated these discussions but now Haskell seems to do that.
+
+Haskell's surface syntax differs from Caml, and there are various important things one can do in
+each of Haskell and Caml that one can't (or can't as easily) do in the
+other. But these languages also have *a lot* in common, and if you're
+familiar with one of them, it's generally not hard to move between it and the
+other.
+
+* In your web browser:
+
+ There is a (slow, bare-bones) version of Haskell available for online use at <http://tryhaskell.org/>.
+
+sudo apk-get install haskell-platform
+
+<https://github.com/pittsburgh-haskell/haskell-installation>
+
+<https://www.haskell.org/platform>
+
+Getting started: <https://wiki.haskell.org/Haskell_in_5_steps>
+
+