euler, a C code which solves one or more ordinary differential equations (ODE) using the forward Euler method.
The computer code and data files described and made available on this web page are distributed under the MIT license
euler is available in a C version and a C++ version and a FORTRAN90 version and a FreeFem++ version and a MATLAB version and an Octave version and a Python version and an R version.
lorenz_ode, a C code which sets up the Lorenz system of ordinary differential equations (ODE), which exhibit sensitive dependence on the initial conditions.
midpoint_explicit, a C code which solves one or more ordinary differential equations (ODE) using the (explicit) midpoint method.
midpoint_fixed, a C code which solves one or more ordinary differential equations (ODE) using the (implicit) midpoint method, using a fixed point method for the implicit equation.
midpoint_gsl_test, a C code which calls the Gnu Scientific Library (GSL) implicit midpoint method solver for ordinary differential equation (ODE), and uses gnuplot() to plot the resulting solution.
rk4, a C code which applies the fourth order Runge-Kutta (RK) algorithm to estimate the solution of an ordinary differential equation (ODE).
spring_ode, a C code which shows how line printer graphics can be used to make a crude illustration of a solution of the ordinary differential equation (ODE) that describes the motion of a weight attached to a spring.