has characteristic has Runge-Kutta method order Runge-Kutta based method deterministic system behaviour progression with fixed time step explicit method type Heun method 2 2011-05-10 http://identifiers.org/isbn/978-3-540-56670-0 AZ Heun's method The method is named after Karl L. W. M. Heun and is a numerical procedure for solving ordinary differential equations (ODEs) with a given initial value. It can be seen as extension of the Euler method [http://identifiers.org/biomodels.kisao/KISAO_0000261] into two-stage second-order Runge-Kutta method. ordinary differential equation problem