Introduction to the Modeling and Analysis of Complex Systems

4.3. SIMULATING DISCRETE-TIME MODELS WITH ONE VARIABLE 43Code 4.7:from pylab import *And then you can add the following lines to the end of your code:Code 4.8:plot(result)show()The completed code as a whole is as follows (you can download the actual Python codeby clicking on the name of the code in this textbook):Code 4.9: exponential-growth.pyfrom pylab import *a = 1.1def initialize():global x, resultx = 1.result = [x]def observe():global x, resultresult.append(x)def update():global x, resultx = a * xinitialize()for t in xrange(30):update()observe()plot(result)show()