rk2, a C code which solves one or more ordinary differential equations (ODE) using an explicit Runge-Kutta method of order 2, also known as Heun's method, the explicit midpoint method, or the modified Euler method.
The information on this web page is distributed under the MIT license.
rk2 is available in a C version and a C++ version and a Fortran90 version and a MATLAB version and an Octave version and a Python version.
c_ode, a C code which solves one or more differential equations (ODE) using a method of a particular order, either explicit or implicit. Some methods require a nonlinear equation solver. Some methods used a fixed stepsize, while others adapt the stepsize based on an error estimate.