Petri net · mass-action kinetics · Tsit5

Predator ⇆ Prey

Two places hold tokens; three transitions move them. Nothing here encodes an oscillation — the cycling falls out of the arc topology once the rates are fixed. Drag a rate to re-solve the whole system.


Transitions

birth
rabbits → 2 rabbits
1.10
predation
rabbits + foxes → 2 foxes
0.40
death
foxes → ∅
0.40

Solution, t = 0 → 30

Click a legend entry to hide a series.

 

Loading the pflow solver…

State at t = 30
PlaceInitialFinalChange
…