slow step implements friction approximation
slow step implements friction approximation

nabijaczleweli/ODE,keletskiy/ode,nabijaczleweli/ODE,nabijaczleweli/ODE,keletskiy/ode,nabijaczleweli/ODE,keletskiy/ode,keletskiy/ode,nabijaczleweli/ODE,keletskiy/ode,keletskiy/ode,nabijaczleweli/ODE