So after a few days at working with to make bindings to in , I'm actually impressed by it.

It's a tool to help with writing bindings to C library. It can generate a lot of the boilerplate associated with this sort of stuff (e.g., generating wrapper types on the Haskell side) and typechecks the FFI imports by analyzing the C types in the library's headers.

It's not perfect, for instance, I still have one weird problem with the types of some function pointers not being imported correctly. But, while I didn't test anything until I had done everything, I haven't had any segfault or unexpected result with the generated bindings, and I find that pretty impressive!

Cuuuuurves 

So now I can make graphs like this and write my equations in !

This is the result of a simulation of the movement of a frictionless pendulum, suspended to a 1 m rod for 10 s. It starts with no velocity at an angle of π/6 with the vertical. The solver returns every 0.1 second. Blue curve is the angle over time, orange curve is the derivative of the angle over time.

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Cuuuuurves 

Forgot the units, it's radian for the angle and radian per second for the angle's variation

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