Lesson

We continue the study of the population function

,

(1)

which we investigated in Lesson 9 up to r = 3. As shown in figure 4 of Lesson 9, function (1) predicts zero population for r 1 and stable population level x = 1 - 1/r in the range r = (1, 3). We now investigate the population dynamics of function (1) for the remaining range of r = (3, 4). For a quick overview of the problem in hand, it is helpful to step through the parameter range with a large increment of 0.1, as shown in table 1. With Prog#9 you may record in table 1 the last 10 iterates for r = 3.0, 3.2, 3.4, 3.7 and 3.9, under the default initial x0 = 0.3 and iteration numbers listed in the third column.

Note:
Prog#9 and Prog#10 are available for download on the index page.
If you use a Macintosh, view the Flash versions.

Table 1.   Last 10 iterations for the parameter range r = (3, 4)

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