MA 226
Differential Equations
Section A
Spring 2010

Project 1
Project 2
Syllabus (including office hours, phone numbers, etc.)
Mark's email message about the homework, etc
- Professor Blanchard's addendum related to late or missing assignments
Homework assignments:
Homework cover sheet
Handouts, demos, etc:
- January 13, 2010
  - Notetaker helper (print out and bring to class)
  - United Nations World Population Estimates
  - U.S. Population Projections by U.S. Census Bureau
  - International Society of Malthus
- January 15, 2010
  - Notetaker helper (print out and bring to class)
- January 20, 2010
  - Notetaker helper (print out and bring to class)
- January 22, 2010
  - Notetaker helper (print out and bring to class)
- January 25, 2010
  - Notetaker helper (print out and bring to class)
- January 27, 2010
  - Notetaker helper (print out and bring to class)
  - Mathematical Association of America's "Year of Euler" (2007) web page
  - William Dunham's wonderful book on Euler
  - spreadsheets for dy/dt = y² - t
    - basic implementation of Euler's method
    - Euler's method with slider
  - spreadsheet for dy/dt = e^t sin y
- January 29, 2010
  - Notetaker helper (print out and bring to class)
- February 1, 2010
  - Notetaker helper (print out and bring to class)
  - Professor Devaney's phase line demo (in Quicktime format)
- February 3, 2010
  - Notetaker helper (print out and bring to class)
- February 5, 2010
  - Notetaker helper (print out and bring to class)
- February 8, 2010
  - Notetaker helper (print out and bring to class)
- February 12, 2010
  - Notetaker helper (print out and bring to class)
  - Random collection of links related to the regulation of fishing
- February 16, 2010
  - Notetaker helper (print out and bring to class)
  - One solution to the predator-prey system graphed in 3D
  - A solution curve and its corresponding component graphs (in Quicktime format)
    solution curve from predator-prey system
  - Three solution curves and their corresponding component graphs (in Quicktime format)
    illustrates the phase portrait for the predator-prey system
- February 17, 2010
  - Notetaker helper (print out and bring to class)
  - One solution to mass-spring system graphed in 3D
  - Two solutions to mass-spring system graphed in 3D (BIG: 900 KB)
    illustrates the concept of the phase portrait
- February 19, 2010
  - Notetaker helper (print out and bring to class)
- February 22, 2010
  - Notetaker helper (print out and bring to class)
- February 24, 2010
  - Notetaker helper (print out and bring to class)
  - spreadsheet for Euler's method for systems
  - spreadsheet for Euler's method for a predator-prey system
- February 26, 2010
  - Notetaker helper (print out and bring to class)
  - animation related to uniqueness for autonomous systems
- March 1, 2010
  - Notetaker helper (print out and bring to class)
- March 3, 2010
  - Notetaker helper (print out and bring to class)
- March 5, 2010
  - Notetaker helper (print out and bring to class)
- March 15, 2010
  - Notetaker helper (print out and bring to class)
- March 17, 2010
  - Notetaker helper (print out and bring to class)
- March 19, 2010
  - Notetaker helper (print out and bring to class)
- March 22, 2010
  - Notetaker helper (print out and bring to class)
- March 26, 2010
  - Notetaker helper (print out and bring to class)
- March 29, 2010
  - Notetaker helper (print out and bring to class)
  - Animation of solutions as the damping parameter is increased (in Quicktime format)
- March 31, 2010
  - Notetaker helper (print out and bring to class)
- April 2, 2010
  - Notetaker helper (print out and bring to class)
- April 5, 2010
  - Notetaker helper (print out and bring to class)
  - Animation of solutions as the forcing frequency changes (in Quicktime format)
- April 7, 2010
  - Notetaker helper (print out and bring to class)
- April 9, 2010
  - Notetaker helper (print out and bring to class)
- April 12, 2010
  - Notetaker helper (print out and bring to class)
- April 14, 2010
  - Notetaker helper (print out and bring to class)
  - Mathematica notebook (optional)
- April 16, 2010
  - Notetaker helper (print out and bring to class)
- April 21, 2010
  - Notetaker helper (print out and bring to class)
- April 23, 2010
  - Notetaker helper (print out and bring to class)
- April 26, 2010
  - Notetaker helper (print out and bring to class)
- April 28, 2010
  - Notetaker helper (print out and bring to class)
Frequently asked questions (FAQ)
- Where can I read about partial fractions on the web?
Old exams:
- MA 226 exams given in Spring 2009