NAME PDL::RungeKutta - Solve N-th order M dimensional ordinary differential equations using adaptive stepsize Runge Kutta method. DESCRIPTION This module allows to solve N-th order M dimensional ordinary differential equations. It uses the adaptive stepsize control for fifth order Cash-Karp Runge-Kutta algorithm described in "Numerical Recipes in Fortran 77: The Art of Scientific Computing" Ch. 16.2 The errors are estimated as the difference between fifth order results and the embeded forth order results. To solve N-th order equations, you must first turn it into a system of N first order equations. INSTALL perl Makefile.PL make make test make install More documentation included with module in POD format. Dragos Constantinescu