**Schedule Spring 2019**

**This Schedule is tentative and subject to changes which will be announced in class.**

**Main Textbook:** Course Lecture Notes – **Read Before Class:** Companion to the Lecture Notes

**Reading assignments before every lecture are mandatory. They are indicated above every lecture in the schedule. ****All Homework are due on Mondays, Wednesdays, and Fridays at 11:00pm.****Weekly Quizzes open on Tuesdays at 8:00am and close on Wednesdays at 11:00pm.**

Week 01

**Monday 1/7**

**Read Before Class: Companion 1.2, Part 1.**

**Lecture 1: Section 1.2,**Introduction to Modeling.

**No Homework Due.**

**Tuesday 1/8**

**No WW-Quiz.**

**Recitation Meets. Lab 01.**

**Honors Students Only: Deep-Dive-01.**

**Due on Tuesday 1/15.**

**Wednesday 1/9**

**Read Before Class: Companion 1.2, Part 2.**

**Lecture 2: Section 1.2,**Introduction to Modeling.

**Video: Section 1.2 – Interacting Species.**

**Homework Due: Hw01-Tutorial, Hw02-1.2-FOE-ItM-1.**

**Friday 1/11**

**Read Before Class: Companion 1.3.**

**Lecture 3: Section 1.3,**Qualitative Analysis.

**Homework Due: Hw03-1.2-FOE-ItM-2.**

Week 02

**Monday 1/14**

**Read Before Class: Companion 1.4.**(Separable Equations.)

**Lecture 4: Section 1.4,**Separable Equations.

**Homework Due: Hw04-1.3-FOE-QA.**

**Tuesday 1/15**

**WW-Quiz-01 Opens in Webwork, Covering Hw02-1.2-FOE-ItM-1, Hw03-1.2-FOE-ItM-2.**

**WW-Quizzes**are in the

**Webwork Exam**server.

**Horizontal Menu**, hover over

**WEBWORK**, choose

**WW EXAM**, choose

**your course section.**

**Recitation Worksheet-01. Recitation Quiz-01 – in Recitation. Covering Secs. 1.1, 1.2, 1.3.**

**Honors Students Only: Deep-Dive-02.**

**Due on Tuesday 1/22.**

**Honors Students Only: Deep-Dive-01 Due in Recitation.**

**Wednesday 1/16**

**Read Before Class: Companion 1.4.**(Euler Homogeneous.)

**Lecture 5: Section 1.4,**Euler Homogeneous Equations.

**WW-Quiz-01 Closes in Webwork.**

**No Homework Due.**

**Friday 1/18**

**Read Before Class: Companion 1.5.**

**Lecture 6: Section 1.5,**Linear Differential Equations.

**Homework Due: Hw05-1.4-FOE-SE.**

Week 03

**Monday 1/21**

**No Lecture.**MLK Day.

**No Homework Due.**

**Tuesday 1/22**

**WW-Quiz-02 Opens in WW, Covering Hw04-1.3-FOE-QA, Hw05-1.4-FOE-SE.**

**WW-Quizzes**are in the

**Webwork Exam**server.

**Horizontal Menu**, hover over

**WEBWORK**, choose

**WW EXAM**, choose

**your course section.**

**Recitation Worksheet-02. Recitation-Quiz-02 – in Recitation, Covering Secs. 1.4, 1.5.**

**Honors Students Only: No Deep-Dive this Week.**

**Honors Students Only:**

**Deep-Dive**-02 Due in Recitation.**Wednesday 1/23**

**Read Before Class: Companion 1.6.**

**Lecture 7: Section 1.6,**Approximate Solutions: Picard Iteration.

**Video: Section 1.6: Linear vs Nonlinear.**

**WW-Quiz-02 Closes.**

**Homework Due: Hw06-1.5-FOE-LE.**

**Friday 1/25**

**Read Before Class: Companion 2.1.**

**Lecture 8: Section 2.1,**Second Order Linear Equations: General Properties.

**Homework Due: Hw07-1.6-FOE-ASPI.**

Week 04 - Gateway Exam

**Monday 1/28**

**Read Before Class: Companion 2.1.**

**Lecture 9: Section 2.1,**Second Order Linear Equations: General Properties.

**Review Problems for Chapter 1.**(See links at the top of this page.)

**No Homework Due.**

**Tuesday 1/29**

**Recitation: Gateway Exam. Covering Chapter 1. Taken in Recitation, Graded by Webwork.**

**Honors Students Only:**

**Deep-Dive**-03.**Due on Tuesday 2/5.**

**Honors Students Only: No**

**Deep-Dive**Due in Recitation.**Wednesday 1/30**

**Read Before Class: Companion 2.2.**

**Lecture 10: Section 2.2,**Homogeneous Constant Coefficients Equations.

**Hand-written lecture notes**(case 1: real distinct roots; case 2: real repeated roots).

**Second Version of the Lecture Notes Section 2.2.**

**Homework Due: Hw08-2.1-SOLDE-GP.**

**Friday 2/1**

**Read Before Class: Companion 2.2.**

**Lecture 11: Section 2.2,**Homogeneous Constant Coefficients Equations.

**Amplitude and Phase Shift Example**.

**Drop with Refund Date.**

**No Homework Due.**

Week 05

**Monday 2/4**

**Webwork Fee Due Date at 10:00 am.**

**Read Before Class: Companion 2.3.**

**Lecture 12: Section 2.3,**Non-homogeneous Equations – Undetermined Coefficients.

**Homework Due: Hw09-2.2-SOLDE-HCC.**

**Hint for Problem 9.****Tuesday 2/5**

**WW-Quiz-03 Opens in WW, Covering Hw08-2.1-SOLDE-GP, Hw09-2.2-SOLDE-HCC.**

**Recitation Meets: Lab-02.**

**Honors Students Only:**

**Deep-Dive**-04.**Due on Tuesday 2/12.**

**Honors Students Only:**

**Deep-Dive**-03 Due in Recitation.**Wednesday 2/6**

**Read Before Class: Review Lab-02.**

**Lecture 13: Section 2.3,**Non-Homogeneous Equations – Resonance.

**WW-Quiz-03 Closes.**

**Homework Due: No Homework Due.**

**Friday 2/8**

**Read Before Class: Companion 3.1.**

**Lecture 14: Section 3.1,**Introduction to the Laplace Transform.

**Review on Partial Fractions (Oregon State University).**

**Homework Due: Hw10-2.3-SOLDE-NH.**

Week 06

**Monday 2/11**

**Read Before Class: Companion 3.2.**

**Lecture 15: Section 3.2,**The Initial Value Problem.

**Beating Solution Computed with the Laplace Transform Method**.

**Homework Due: Hw12-3.1-LT-DEF.**

**Tuesday 2/12**

**WW-Quiz-04 Opens in WW, Covering Hw10-2.3-SOLDE-NonH, Hw11-3.1-LT-Def.**

**Recitation Worksheet-03. Recitation-Quiz-03 – in Recitation. Covering Secs. 2.3, 3.1, 3.2.**

**Honors Students Only: No**

**Deep-Dive this Week**.**Honors Students Only:**

**Deep-Dive**-04 Due in Recitation.**Wednesday 2/13**

**Read Before Class: Companion 3.3.**

**Lecture 16: Section 3.3,**Discontinuous Sources and Translations.

**IVP with Complex Roots and Complete the Square Method**.

**WW-Quiz-04 Closes.**

**Homework Due: Hw13-3.2-LT-IVP.**

**Friday 2/15**

**Read Before Class: Companion 3.4.**

**Lecture 17: Section 3.4,**Dirac’s Delta Sources.

**Homework Due: Hw13-3.3-LT-DS.**

Week 07 - Midterm 1

**Monday 2/18**

**Lecture 18: Review Midterm Exam 1.**

**Review for Chapters 1, 2, and 3.**(See links at the top of this page.)

**Homework Due: Hw14-3.4-LT-GS.**

**Tuesday 2/19**

**Exam 1 Covering Chapters 1, 2, and 3.1-3.4. Section 3.5 not covered.**

**The Exam has two parts:**

**Exam 1 Part A: In Recitation at Recitation Time. Graded by Webwork.**

**Exam 1 Part B: 8:30-10:00pm. Graded by TA. Room Assignments for Exam 1 Part B, by section.**

**Honors Students Only:**

**Deep-Dive**-05.**Due on Tuesday 2/26.**

**Honors Students Only: No**

**Deep-Dive**Due in Recitation.**Wednesday 2/20**

**Read Before Class: Companion 4.1.**

**Lecture 19: Section 4.1,**Modeling with First Order Systems of ODEs.

**No Homework Due.**

**Friday 2/22**

**Read Before Class: Companion 4.2.**

**Lecture 20: Sections 4.1, 4.2,**Vector Fields and Qualitative Solutions

**No Homework Due**.

Week 08

**Monday 2/25**

**Read Before Class: Companion 4.2.**

**Lecture 21: Section 4.2,**Vector Fields and Qualitative Solutions.

**Homework Due:**

**Hw16-4.1-SDE-MFOS**.

**Tuesday 2/26**

**WW-Quiz-05 Opens on WW, Covering Hw15-3.5-LT-C, Hw16-4.1-SDE-MFOS, Hw17-4.2-SDE-VFQS.**

**Recitation Meets: Lab-03.**

**Honors Students Only:**

**Deep-Dive**-06.**Due on Tuesday 3/12.**

**Honors Students Only:**

**Deep-Dive**-05 Due in Recitation.**Wednesday 2/27**

**Read Before Class: Companion 5.1.**

**Lecture 22: Section 5.1,**Algebraic Linear Systems.

**Drop with No Grade Reported Deadline.**

**WW-Quiz-05 Closes.**

**Homework Due: Hw17-4.2-SDE-VFQS.**

**Friday 3/1**

**Read Before Class: Companion 5.2.**

**Lecture 23: Section 5.2,**Vector Spaces.

**Homework Due:**

**Hw18-5.1-LA-ALE**.

Week 09 - Spring Break

**Monday 3/4**

**No Lecture.**

**No Homework Due.**

**Tuesday 3/5**

**No WW-Quiz.**

**No Recitation.**

**No Honors-Projects.**

**Wednesday 3/6**

**No Lecture.**

**No Homework Due.**

**Friday 3/8**

**No Lecture.**

**No Homework Due.**

Week 10

**Monday 3/11**

**Read Before Class: Companion 5.3.**

**Lecture 24: Section 5.2, 5.3,**Vector Spaces and Matrix Algebra.

**No Homework Due.**

**Tuesday 3/12**

**WW-Quiz-06 Opens on WW, Covering Hw18-5.1-LA-ALE, Hw19-5.2-LA-VS.**

**Recitation Worksheet-04. Recitation-Quiz-04 – in Recitation. Covering Secs. 5.1, 5.2.**

**Honors Students Only:**

**Deep-Dive**-07.**Due on Tuesday 3/19.**

**Honors Students Only:**

**Deep-Dive**-06 Due in Recitation.**Wednesday 3/13**

**Read Before Class: Companion 5.3.**

**Lecture 25: Section 5.3,**Matrix Algebra.

**WW-Quiz-06 Closes.**

**Homework Due: Hw19-5.2-LA-VS.**

**Friday 3/15**

**Read Before Class: Companion 5.4.**

**Lecture 26: Section 5.4,**Eigenvalues and Eigenvectors.

**Homework Due: Hw20-5.3-LA-MA.**

Week 11

**Monday 3/18**

**Read Before Class: Companion 5.5.**

**Lecture 27: Section 5.5,**Diagonalizable Matrices.

**Homework Due: Hw21-5.4-LA-EE.**

**Tuesday 3/19**

**WW-Quiz-07 Opens on WW, Covering Hw20-5.3-LA-MA, Hw21-5.4-EE.**

**Recitation Meets: Lab-04.**

**Honors Students Only:**

**Deep-Dive**-08.**Due on Tuesday 3/26.**

**Honors Students Only:**

**Deep-Dive**-07 Due in Recitation.**Wednesday 3/20**

**Read Before Class: Companion 5.6.**

**Lecture 28: Section 5.6,**Matrix Exponential.

**WW-Quiz-07 Closes.**

**Homework Due: Hw22-5.5-LA-DM.**

**Friday 3/22**

**Read Before Class: Companion 6.1.**

**Lecture 29: Section 6.1**Two-Dimensional Linear Systems.

**Homework Due: Hw23-5.6-LA-ME**

**.**

Week 12

**Monday 3/25**

**Read Before Class: Companion 6.1.**

**Lecture 30: Section 6.1,**Two-Dimensional Linear Systems.

**No Homework Due**.

**Tuesday 3/26**

**WW-Quiz-08 Opens on WW, Covering Hw22-5.5-DM, Hw23-5.6-LA-EM.**

**Recitation Worksheet-05. Recitation-Quiz-05 – in Recitation. Covering Secs. 5.5, 5.6, 6.1.**

**Honors Students Only:**

**Deep-Dive**-09.**Due on Tuesday 4/2.**

**Honors Students Only:**

**Deep-Dive**-08 Due in Recitation.**Wednesday 3/27**

**Read Before Class: Companion 6.2.**

**Lecture 31**

**: Section 6.2,**Two-Dimensional Phase Portraits.

**WW-Quiz-08 Closes.**

**Homework Due:**

**Hw24-6.1-QA-2×2**.

**Friday 3/29**

**Read Before Class: Companion 6.2.**

**Lecture 32: Section 6.2**, Two-Dimensional Phase Portraits.

**No Homework Due**.

Week 13

**Monday 4/1**

**Read Before Class: Companion 6.3.**

**Lecture 33: Section 6.3,**Two-Dimensional Nonlinear Systems.

**Homework Due: Hw25-6.2-QA-2x2PP.**

**Tuesday 4/2**

**WW-Quiz-09 Opens on WW, Covering Hw24-6.1-QA-2×2, Hw25-6.2-QA-2x2PP.**

**Recitation Worksheet-06. Recitation-Quiz-06 – in Recitation. Covering Secs. 6.1, 6.2**

**Honors Students Only: No**

**Deep-Dive this Week**.**Honors Students Only:**

**Deep-Dive**-09 Due in Recitation.**Wednesday 4/3**

**Read Before Class: Companion 6.3.**

**Lecture 34: Section 6.3,**Two-Dimensional Nonlinear Systems.

**WW-Quiz-09 Closes.**

**No Homework Due**.

**Friday 4/5**

**Read Before Class: Companion 6.4.**

**Lecture 35: Section 6.4,**Nonlinear Pendulum.

**Homework Due: Hw26-6.3-QA-NS.**

Week 14 - Midterm 2

**Monday 4/8**

**Lecture 36**

**: Review for Midterm Exam 2.**

**Review Problems for Chapters 4, 5, and 6.**(See links at the top of this page.)

**Homework Due:**

**Hw27-6.4-QA-NP**.

**Tuesday 4/9**

**Exam 2 Covers Chapters 4, 5, 6.**

**The Exam has two parts:**

**Exam 2 Part A: In Recitation at Recitation Time. Graded by Webwork.**

**Exam 2 Part B: In B115, B117, B119 WH, 8:30-10:00pm. Graded by TA.**

**Honors Students Only:**

**Deep-Dive**-10.**Due on Tuesday 4/16.**

**Honors Students Only: No**

**Deep-Dive**Due in Recitation.**Wednesday 4/10**

**Read Before Class: Companion 7.1.**

**Lecture 37: Section 7.1,**Eigenfunction Problems

**No Homework Due**.

**Friday 4/12**

**Read Before Class: Companion 7.1.**

**Lecture 38: Section 7.1**Eigenfunction Problems.

**No Homework Due.**

Week 15

**Monday 4/15**

**Read Before Class: Companion 7.2.**

**Lecture 39: Section 7.2,**Fourier Series.

**Homework Due:**

**Hw28-7.1-BVP-SE.**

**Tuesday 4/16**

**WW-Quiz-10 Opens on WW, Covering Hw26-6.3-QA-NS, Hw27-6.4-QA-NP, Hw28-7.1-BVP-SE.**

**Recitation Meets: Lab-05.**

**Honors Students Only:**

**Deep-Dive**-11.**Due on Tuesday 4/23.**

**Honors Students Only:**

**Deep-Dive**-10 Due in Recitation.**Wednesday 4/17**

**Read Before Class: Companion 7.2.**

**Lecture 40: Section 7.2,**Fourier Series.

**WW-Quiz-10 Closes.**

**No Homework Due.**

**Friday 4/19**

**Read Before Class: Companion 7.3.**

**Lecture 41: Section 7.3**The Heat Equation – Dirichlet Boundary Conditions.

**Homework Due: Hw29-7.2-FS**.

Week 16

**Monday 4/22**

**Read Before Class: Companion 7.3.**

**Lecture 42: Section 7.3**The Heat Equation – Neumann Boundary Conditions.

**No Homework Due.**

**Tuesday 4/23**

**WW-Quiz-11 Opens on WW, Covering Hw28-7.1-BVP-SE, Hw29-7.2-FS.**

**Recitation Meets. Review for Final Exam.**

**Honors Students Only:**

**Deep-Dive**-11 Due in Recitation.**Wednesday 4/24**

**Read Before Class: Companion 7.3.**

**Lecture 43: Section 7.3**The Heat Equation – Mixed Boundary Conditions.

**WW-Quiz-11 Closes.**

**No Homework Due.**

**Friday 4/26**

**Lecture 44: Review for Final Exam.**

**Review Problems for Chapters 1-7.**(See links at the top of this page.)

**Homework Due: Hw30-7.3-HE.**

Week 17 - Final Exam

**Tuesday 4/30**

**Final Exam, from 7:45am till 10:00pm, Covering All Sections.**

**Information about the Final Exam:**

**– Times: 7:45am, 10:15am, 12:45pm, and 3:15pm.**

**– Rooms: B-102, B-110F, B-110G, and B-110H in Wells Hall, and 415 in Computer Center.**

**– Students sign up for their chosen time.**

**– Sign up for the Final Exam will**

**start Tuesday 4/2 at 10am.**

**– Sign up for the Final Exam will**

**end Tuesday 4/9 at 10am.**

**Wednesday 5/1**

**Makeup Final Exam, 10:00am-12:00pm Covering All Sections.**

**– Room: B-110G Wells Hall.**

**Sign Up for Makeup Final Exam:**

**– Sign up must be done at least a week in advance.**

**– Students must have 3 or more exams on Monday.**

**– Students must bring a copy of their schedule to C-129 Wells Hall.**