Supplemental material, 2D_time_memory_relative for A Multidimensional Array Representation of State-Transition Model Dynamics by Eline M. Krijkamp, Fernando Alarid-Escudero, Eva A. Enns, Petros Pechlivanoglou, M.G. Myriam Hunink, Alan Yang and Hawre J. Jalal in Medical Decision Makin