# Ordinary Differential Equations, Kreider, Summer 2019

Policy sheet and syllabus

Suggested homework problems

Anticipated schedule

Office Hours: 11:30-12:30 MTTh and by appointment, CAS 220

## Collected Work Schedule

Quiz 1 key

Quiz 2 key

Quiz 3 key

Quiz 3B key

Quiz 4 key

Quiz 4B key

Quiz 5 key

Quiz 6 key

Quiz 6B key

Quiz 7 key

Quiz 8 key

Quiz 9 key

Quiz 10 key

Quiz 11 key

Quiz 12 key

Quiz 13 key

Quiz 14 key

Quiz 15 key

Quiz 16 key

Quiz 17 key

Quiz 18 key

Quiz 19 key

Quiz 20 key

## Sundries

#### Exam 1 material

Integration review

Visualizing solutions

Direction Fields

An implicit solution: -xy+y*sin^2(x)+2*exp(xy^2)=3

First Order Application Worksheet

Application Worksheet Annotations

Note on exact equations

Preparation for Exam 1

Quick Skills Review for Exam 1

Quick Skills Review for Exam 1: Key

Practice Problems

Practice Problem Answers

Exam 1 Sample A (ignore problem #1)

Exam 1 Sample A Key

Exam 1 Sample B

Exam 1 Sample B Key

#### Exam 2 material

Euler's Formula

Higher Order Solution Forms

Undetermined coefficient examples

Answer Key for Spring Mass Worksheet

Interpretation of spring mass systems

Some second order problems

Second order answer key

Setting up spring mass problems

Concept Worksheet for Exam 2

Concept Worksheet answer key

Exam 2 Class Review Sheet

Exam 2 Class Review Answers

Preparation for Exam 2

Quick Skills Review for Exam 2

Quick Skills Review for Exam 2: Key

Exam 2 Sample A

Exam 2 Sample A Key

Exam 2 Sample B

Exam 2 Sample B Key

#### Exam 3 material

Laplace Transform Table

Partial fraction forms

Partial fraction examples

Example A details

Shifting examples

Preparation for Exam 3

Quick Skills Review for Exam 3

Quick Skills Review for Exam 3: Key

Typical types of problems

Typical types: solutions

Exam 3 Sample A

Exam 3 Sample A Key

Exam 3 Sample B

Exam 3 Sample B Key

A series example with and without sigma notation, to show the sigma notation helps at the end of a problem

Final Exam Review Problems

Preparation for Final Exam