Elementary Differential Equations MATH 240 - Fall 2009

All assignments due by November 13th are correct.  Others will be changed.

Written Assignments

Assignment #

Assignment

Assignment 1 -- Due September 4
Chapter 1, section 2     1, 4, 7, 9, 15
Chapter 1, section 3     5, 15, 20
Chapter 1, section 4     1, 8, 12, 16
Chapter 1, section 5     2, 3, 7, 12, 13, 15
Assignment 2 -- Due September 11
Chapter 1, section 6    2, 4, 7, 8, 9
Chapter 1, section 9    1
Assignment 3 -- Due September 18
Chapter 1, section 12    3, 5, 6, 11, 16
Chapter 1, section 16    6, 7, 15, 16, 24
Assignment 4 -- Due October 2
Chapter 2, section 1    1, 4, 5, 11, 16, 20
Chapter 2, section 3    1, 5, 9, 14
Chapter 2, section 6    9, 11, 12, 13, 15, 18
Assignment 5 -- Due October 9
Chapter 2, section 6    22, 32, 33, 40, 45
Chapter 2, section 7    2, 4, 8, 10, 17, 21, 22, 23, 24
Assignment 6 -- Due October  16
Chapter 2, section 8     2, 3, 4
Chapter 2, section 12   1, 11
Chapter 2, section 13    4, 6, 7
Assignment 7 -- Due  October 30
Chapter 2, section 14    2, 3, 7, 9
Chapter 3, section 1      1, 2, 5, 8, 11, 12, 18
Assignment 8 -- Due November 6
Chapter 3, section 3    3, 4, 8, 9, 12, 14
Chapter 3, section 5    1, 4, 7, 9, 12, 14
Assignment 9 -- Due November 13
Chapter 3, section 5    18, 19, 20
Chapter 3, section 6    1, 2, 5, 8
Chapter 3, section 7    4, 6, 7
Assignment 10 -- Due December 4
Chapter 4, section 1     2, 5, 8, 9
Chapter 4, section 3     1, 2, 4, 7
Chapter 4, section 4     2, 5, 6
Assignment 11 -- Due December 11
Chapter 4, section 7     1, 4, 5, 11, 13
Chapter 4, section 8     1, 5, 7, 10
Chapter 4, section 9      2, 4, 11, 12


Labs
Lab #
Date of Lab
Due date
Problems to be handed in
Lab 1  Instructions  Slope fields
September 1           
Due September 8        
Lab 1 Instructions    1-8      (Do not do the problems in Chapter 1, section 7)
Lab 2   Numerical methods
September 8
Due September 15
Chapter 1, section 8    1, 3, 9, 11, 17, 19
Lab 3   Harvesting
September 15
Due  September  22
Chapter 1, section 14    1-8
Lab 4   Complex functions
September 29
Due October  6
Chapter 2, section 4    1-5
Lab 5   Unforced motion
October 6
Due October 13
Chapter 2, section 11    2, 6, 7, 10, 11, 15-20
Lab 6   Forced motion
October 13
Due October  20
Chapter 2, section 12    2, 4, 5, 11, 13, 21-25
Lab 7   Numerical methods-systems
October 27
Due November 3
Chapter 2, section 15    1, 4, 5, 8, 9, 12
Lab 8   The Gamma function
November 3
Due November 10
Chapter 3, section  2     1-10
Lab 9   Stability
November 10
Due November 17
Chapter 3, section 4    1-5
Lab 10  Taylor series
November 24
Due December 1
Chapter 4, section 2    1-10
Lab 11   Series solutions
December 1
Due December 8
Chapter 4, section 5    1-6

On-line assignments

1. Separable equations
6. Long-term behavior
11. Spring-mass systems
16. First-order linear systems
2  Exact equations
7. Complex arithmetic
12. Circuits
17. Series solutions
3.  Linear equations
8. Complex variables
13. Laplace transforms
18. Radius of convergence
4. Bernoulli equations
9. Second-order homogeneous equations
14. Inverse Laplace transforms
19. Euler equations
5. Homogeneous equations
10. Second order inhomogeneous equations
15. Impulse functions

            
                                                                                                                      
Extra Credit Assignments

Problems to be handed in
Due date
Extra Credit Assignment 1, Numerical methods
Chapter 1, section 9     2, 4, 5    if you do this on a computer, include a printout of your algorithm
September 25
Extra Credit Assignment 2, Boundary value problems
Chapter 2, section 9    1, 6, 9, 12, 13, 14
October 23
Extra Credit Assignment 3, Partial Differential Equations
Chapter 2, section 10    1-5
October 30
Extra Credit Assignment 4, Padé Approximations
Chapter 4, section 6     1-4   do these with pencil and paper or a computer algebra program--ignore instructions about xc12
December 4