Delta Banner

Mathematics & Science Learning Center
Computer Laboratory


Applications of Differential Equations

Population Dynamics

(continued from last page...)

We need to wrap a Solve command around the equation we created on the last page. The resulting command would be:

Solve[(malthus /. t -> 2010) == 310383948., k]

Notice the decimal point after the population value? Make sure you include it. This will ensure that Mathematica treats it as an approximate real number rather than an exact integer value. This matters here because Mathematica will find the set of all possible solutions in the complex plane if you leave this number as an integer. We don't want that!

Let's go see what it produces...

Compass If you're lost, impatient, want an overview of this laboratory assignment, or maybe even all three, you can click on the compass button on the left to go to the table of contents for this laboratory assignment.

ODE Laboratories: A Sabbatical Project by Christopher A. Barker

©2017 San Joaquin Delta College, 5151 Pacific Ave., Stockton, CA 95207, USA