[ODE] what integration method is used ?

[Torsten Hans]

hello,

i recently came across ode. its seems like an interesting
project. however i couldn't find out an important information:

what basic integration scheme does ODE use ? is it an
explicit or implicit integration method ? does it use
runge kutta or something else ?

is it possible to use a different integration scheme ?



any information would be appreciated.

kind regards,
  torsten hans