For simplicity one can, however, assume that each time step is as long as the mean time between two changes which can be derived from the reproduction and mutation rates r {\displaystyle r} and μ {\displaystyle \mu } .
Por simplificar, pódese asumir que cada punto temporal é tan longo como a media de tempo entre dous cambios que poden ser derivados das taxas r {\displaystyle r} e μ {\displaystyle \mu } de reprodución e de mutación.