# freude
The `freude` crate will provide steppers and integrators to solve ODEs
(ordinary differential equations). It is inspired by `boost::numeric::odeint`.
At the moment it only supports the explicit, fixed-step Euler, Heun, and 4-th
order Runge Kutta (RK4) methods.
## Todo
Pretty much everything. :-)
## Recent changes
+ 0.3
+ Update to `ndarray 0.9`
+ Unify `Vec` and `ArrayBase` stepper states through `ndarray`'s `Zip` and `IntoNdProducer` traits
+ Provide several examples as benchmarks (Kuramoto and Chaotic Neural Network models)
+ 0.2.0
+ Complete rework of the ODE, stepper, and integrator logic;
+ System state is no longer considered an internal property of an ODE, but a
parameter passed to the stepper.
+ 0.1.1
+ Implement Euler and Heun methods
+ 0.1.0
+ Initial release
+ Definition of explicit, fixed step integrators, steppers
+ Definition of ODEs
+ Implementation of Runge-Kutta-4 method
## Trivia
The crate's name `freude` is inspired by Beethoven's *Ode an die Freude* (“Ode to
Joy”), and can be pronounced either /ˈfʀɔɪ̯də/ or, alternatively, *froy-D-E* (as
in O-D-E).