Mathematics & Science Learning Center
Computer Laboratory
Applications—Population Dynamics
CONTENT GUIDE for POPULATION DYNAMICS LABORATORY
Theoretical Introduction
Plotting the Actual Data with
Mathematica
Acccessing Wolfram's Curated Database
The Syntax of
CountryData
and the Population of the United States
Applying
QuantityMagnitude
Extracting the US Census Data from the Database
Using
ListPlot
to Graph the Data
The Result of Plotting the Data
Plotting the Malthusian Model with
Mathematica
Solving the Malthusian IVP
Results of
DSolve
& the
[[1,1,2]]
trick
Discussion of Finding
k
Using
Solve
to Find
k
The Result from
Solve
Subbing the
k
-value into the Malthus Solution
Results of the Substitution & Plotting the Malthus Solution
The Result of Plotting the Malthus Solution
Plotting the Verhulst Model with
Mathematica
Solving the Verhulst IVP
Results of
DSolve
& the
[[1,1,2]]
trick
Discussion of Finding
a
&
b
Using
FindRoot
Results for
a
&
b
and Substituting Them into the Solution
Results of the Substitution & Plotting the Verhulst Solution
The Result of Plotting the Verhulst Solution
Comparing the Models & Using the Results
Comparing the Models & the
Show
Command
The Result of
Show
& Predicting 2050's Population
Results and Analysis of Our Predictions & Intro to Curve Fitting
Curve Fitting the Malthusian Model
Intro to
FindFit
and a First Attempt
FindFit
's Silly Result & an Attempt to Improve It
A Second Attempt with
FindFit
Best Parameters Found and Used
Plotting the Best-fitting Malthusian Model
The Graph of the Best-fitting Malthusian Model
Comparing the Best-fitting Malthusian Model to the Data
Curve Fitting the Verhulst Model
A First
FindFit
Attempt
FindFit
's Silly Result & an Attempt to Improve It
Best Parameters Found and Used
Plotting the Best-fitting Verhulst Model
The Graph of the Best-fitting Verhulst Model
Comparing the Best-fitting Malthusian Model to the Data & Predicting 2050
The Results of the 2050 Predictions
Exercise Analyzing the Libyan Population
Main Table of Contents for All ODE Laboratories
ODE Laboratories: A Sabbatical Project by Christopher A. Barker
©2017 San Joaquin Delta College, 5151 Pacific Ave., Stockton, CA 95207, USA
e-mail:
cbarker@deltacollege.edu