Figure 6
From: Quasi-cellular systems: stochastic simulation analysis at nanoscale range
QDC's syntax example. Here it is an example of an immediate reactions; the A molecule is continuously added by the uptake reaction 0.9 null > A; the immediate reaction is identified by the hyphen sign ("-") that is present instead of a kinetic coefficient, and acts by producing one C molecule every 30 A molecules; notice the resulting oscillatory behavior of the A specie.