OCaml

What do you think of OCaml?

Right now it's my favorite language. It's actually practical and fast (unlike Haskell). Also I can use imperative style whenever I feel like it but I still have all of the goodness from using a functional language. I am starting to use it as my regular language.

>>11
It's a Turing complete programming language... what can't you do with it?

But seriously, I am just starting out with it. Right now I have an implementation of a Kd-tree, and some other image processing stuff like filters and so on. Also a bunch of triangle mesh functions.

There are lot of raytracer implementations using OCaml. I find those to be very good references in terms of programming style and also I use a lot of their useful little functoins.
Ex. http://sites.google.com/site/bertocaml/ http://opath.sourceforge.net/index.html http://bla.thera.be/article/prepare-for-raytracing

>>12
It was annoying when I started but I got kind of used to it. Also, it actually helped me lot because it caught a lots of potential bugs at compile time where I switched integers and floats.