This test system models a simple biochemical system of five variables, and originally studied by Box et al. (1973).
The system has five dependent variables X3-X5. It can be described by the following equations:
X1'(t) = -( k1 + k2) X1(t) X2'(t) = k1 X1(t) X3'(t) = k2 X1(t) - (k3 + k4) X3(t) + k5 X5(t) X4'(t) = k3 X3(t) X5'(t) = -k4 X3(t) + k5 X5(t)
The system specification in the same format as the problem: pinene.
The system specification in SBML format: pinene.xml.
A simple Matlab script for simulating the system is given in pinene.m.
pe_pinene is a parameter estimation test problem with data from Box et al. (1973).