Welcome to Math 20D Solutions

Solutions Last Updated: July 21 2015 11:10:42.

The solutions to assigned problems for the Math 20D course taught by Dr. Reynolds are linked below. More to come as the quarter progresses. (Certain links contain more than one problem... and clarifications and typo-alerts are mentioned in the comments section appending each problem.)

Some Tutorial Files (Tutorial Files Last Updated: January 31, 2008 22:12:00.) from chapters or sections of a math book I am writing.

2.23.2006: Scanner flaked out on me on a few solutions... If my knowledge of physics is useful enough I might be able to fix my scanner and post re-scans in the near future. ALSO: Here are some links to MATLAB's (and when I have time to scan up my quizzes and exams, they'd be here, too.)

MATLAB for you to peruse. I post these because my detailed explanations for each MATLAB question may be of educational value to you.

Solutions

Section 1.1:

Section 3.3; Problem 10

Section 1.1:

Section 1.1; Problem 22

Section 3.3:

Section 3.3; Problem 1

Section 1.1:

Section 1.1; Problem 23

Section 3.3:

Section 3.3; Problem 18

Section 1.1:

Section 1.1; Problem 7

Section 3.3:

Section 3.3; Problem 19

Section 1.1:

Section 1.1; Problem 9

Section 3.5:

Section 3.5; Problem 27

Section 1.2:

Section 1.2; Problem 12

Section 3.5:

Section 3.5; Problem 20

Section 1.2:

Section 1.2; Problem 3

Section 3.5:

Section 3.5; Problem 8

Section 1.2:

Section 1.2; Problem 4

Section 3.6:

Section 3.6; Problem 14

Section 1.2:

Section 1.2; Problem 9

Section 3.6:

Section 3.6; Problem 2

Section 1.3:

Section 1.3; Problem 10

Section 3.6:

Section 3.6; Problem 21

Section 1.3:

Section 1.3; Problem 27

Section 3.6:

Section 3.6; Problem 27

Section 1.3:

Section 1.3; Problem 6

Section 3.6:

Section 3.6; Problem 5

Section 11.1:

Section 11.1; Problem 13

Section 3.7:

Section 3.7; Problem 17

Section 11.1:

Section 11.1; Problem 17

Section 3.7:

Section 3.7; Problem 2

Section 11.1:

Section 11.1; Problem 31

Section 3.7:

Section 3.7; Problem 21

Section 11.1:

Section 11.1; Problem 37

Section 3.7:

Section 3.7; Problem 7

Section 11.1:

Section 11.1; Problem 55

Section error_log.:

Section error_log.; Problem

Section 11.1:

Section 11.2:

Section 11.2; Problem 1

Section 11.3:

Section 11.3; Problem 1

Section 11.4:

Section 11.4; Problem 1

Section 11.5:

Section 11.5; Problem 1

Section 2.1:

Section 2.2:

Section 2.3:

Section 2.4:

Section 2.5:

Section 2.6:

Section 3.2:

Section 3.3:

Section 3.4:

Section 3.5:

Section 3.5; Problem 14

The above solutions are for Elementary Differential Equations, 8th Edition by Boyce and DiPrima

Last Updated: July 21 2015 11:10:42.

If you are bored, you can try answering the questions posted in the comments section of each problem.