poisson.m manyuniform.m manypoissonunif.m manypoisson.m hitting.m gambler_visits.m gambler.m example5_3_23.m disc_arrival.m chutesladders.m chutes.m uniform.m system2.m system1.m slot_machine.m simulate_chain.m showmatrix.m ruin.m renewal.m renewal2.m remaining.m rando.m potential.m