pathsim.solvers.dirk2 module

class pathsim.solvers.dirk2.DIRK2(*solver_args, **solver_kwargs)[source]

Bases: DiagonallyImplicitRungeKutta

The 2-stage SSP-optimal Diagonally Implicit Runge–Kutta (DIRK) method of second order, namely the second order RK with the largest radius of absolute monotonicity. It is also symplectic and the optimal 2-stage second order implicit RK.

FROM :: L. Ferracina and M.N. Spijker. Strong stability of singlydiagonally-implicit Runge-Kutta methods. Applied Numerical Mathematics, 58:1675–1686, 2008.