Cheg 258 - Lecture Notes - April 18, 2001

Announcements

Class notes

The main points of the lecture were

• Ordinary Differential Equations

Goals:

• Convert an nth order differential equation into a system of n first order differential equations.

Reading

• The class notes and Ch. 8 of Kahaner and Ch. 12 of Recktenwald.

Questions of the Day:

• The Blasius equation for the velocity profile in flow past a flat plate is given by:
  f''' + f f'' = 0
  You will see this equation next fall. How do I recast this into a set of first order differential equations?
• How many initial conditions do I need to start integrating the set of equations resulting from the above problem?

Matlab Example Codes

example 30