rk4_test a FORTRAN90 code which calls rk4(), which implements a simple Runge-Kutta solver for an initial value problem.
The computer code and data files described and made available on this web page are distributed under the MIT license
rk4, a FORTRAN90 code which applies the fourth order Runge-Kutta (RK) algorithm to estimate the solution of an ordinary differential equation (ODE).
