Quote of the Day:
"Among all of the mathematical disciplines the theory of 
   differential equations is the most important... It 
   furnishes the explanation of all those elementary 
   manifestations of nature which involve time."  
   -- Sophus Lie

Objective:
The student will solve elementary differential equations.

1. Collect Homework.

2. Definition:  A Differential Equation is an equation 
                containing derivatives (or differentials).

3. Solving a Differential Equation means obtaining a 
   function without derivatives or differentials.  
   We integrate to solve differential equations. 

4. Show comic strips on Differential Equations.
        Comic strip by Harry Blair
        Fox Trot Comic strip

5. Assignment
   solve  dy/dx = x/y given that if x = 1, y = 2
   p. 373 (63, 64, 69)

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