University of Illinois at Urbana-Champaign

Spring 2019
MATH 441. Differential Equations, Section X13/X14

241 Altgeld Hall, MWF, 12-12:50 pm

Instructor: Bruce Berndt
Department of Mathematics
Office: 215 Altgeld Hall
Phone: (217) 333-3970
Fax: (217) 333-9576
Office Hours: 1-2 p.m. MWF; 10-11 a.m. Thurs
Email: berndt@illinois.edu

Textbook: Elementary Differential Equations and Boundary Value Problems, by Boyce and DiPrima, 10th Edition

Course Syllabus

Homework Assignments

Section 1.3; odd problems, 1-20
Section 2.1; odd problems, 1-20,38; hand in 17,39,41
Section 2.2; 1,3,5,7,9,12-16,21,25; hand in 23,32
Section 2.6; 1,3,5,7,9,11,15,24,25,29; hand in 23,27
Section 2.4; 29; hand in 31
Section 2.4; 13,14,15,23; hand in 22
Section 2.8; 3,5,7,9,11a,13; hand in 14,15
Section 2.9; odd problems 37-51; hand in 46
Section 3.1; odd problems 1-16,25,28; hand in 23
Section 3.2; odd problems 1-11,13,15,16,17,19,23,31; hand in 25,29
Section 3.3; 1,5,7,9,11,13,15,23,27,31
Section 3.4; odds 1-20,33,41,42,43; hand in 45
Section 3.5; 1,2,3,4,8,9,13,15,17,19; hand in 20

Selected Solutions

Homework #1
Homework #2
Homework #3
Homework #4
Homework #5

First Exam

The first exam covered material up to (but not including) linear second order differential equations with constant coefficients in which the characteristic polynomial has complex roots.

Solutions to Exam #1
Grading Scale for Exam #1

Class Notes on Exact Differential Equations

Exact Differential Equations

Example Illustrating Existence and Uniquess of Solutions

Example to Illustrate Existence and Uniquess

Last modified January 14, 2019