Math 246 Quiz & Exam

• Mid Exam I
• Quiz 2: 2-nd order homogeneous equation with constant coefficients (3.1, 3.4, 3.5)
• Quiz 3: using Laplace transform to solve 2-nd order equation (6.1 -- 6.4)
• Mid Exam II: Ch 3.1 -- 3.8; Ch 6.1 -- 6.4.
• Quiz 4: Ch 7.1 --7.4
• Final Exam: Saturday, May 12,1:30-3:30. Because there will be many students requesting an alternate final for religious reasons, we have scheduled a uniform alternate final on Sunday, May 13, 1:30-3:30.
• NOTICE for alternate final on Sunday: Send me an email with your name and UID by Friday. Place: ARM 0126,0135.
• Place for Final Exam: Qiwen Chen's sections: MMH 1400, Kostas Spiliopoulos' section : ARM 0126.
• Review for the final exam. You can find detailed description of material covered in the final.
• Practice Exams: You can find all old exams from Testbank. You are recommended to do the following old exams: Fall 2006, Spring 2006, Fall 2005, Spring 2005.
• Since there is no available solution for old exams, this file collect solutions for selected problems which are relatively difficult. It does NOT imply that problems in this file will be in the final. You are recommended to do the following old exams: FALL 2006, SPRING 2006, FALL 2005, and SPRING 2005.
• NOTICE: We are sorry for the late notice but we want all instructors andstudents to be aware that UMUC will have commencement ceremonies on Saturday (05/12/07). There are two ceremonies starting at 10am and 4pm and they will occur at the Comcast Center. Please note that there may be heavy traffic conditions on and around campus; and allow adequate traveltime in order to reach your destinations. Please distribute this information to your instructors allowing them to notify their students of the potential congestion on campus this Saturday.

Math 246 Info

Lecture: T Th 11:00 am - 12:15 pm (ARM 0135)
Instructor: Long Chen lyc102@gmail.com
Ofice Hours: M W F 2:00 pm -- 3:00 pm (MTH 4108)
Syllabus: Click Here.
Teaching Assistant:

Kostas Spiliopoulos. Office Hours: TuTh 8:35-9:35 (MATH 4423).

Qiwen Chen;

Math 246 Calendar

Spring Semester 2007
Note: This calendar is subject to revision during the term.

Week	Tuesday	Thursday	Friday
1	Jan. 23	Jan. 25 2.1	Jan. 26 Basic of Matlab;
2	Jan. 30 2.2-2.3	Feb. 1 2.4	Feb. 2
3	Feb. 6 2.5	Feb. 8 2.6	Feb. 9 Quiz 1
4	Feb. 13 2.7, 8.1	Feb. 15 8.2, 8.3	Feb. 16
5	Feb. 20 3.1, 3.4	Feb. 22 3.2, 3.5	Feb. 23 Matlab Project 1
6	Feb. 27 Mid Exam I	Mar. 1 3.2, 3.3	Mar. 2
7	Mar. 6 3.6	Mar. 8 3.7	Mar. 9 Quiz 2
8	Mar. 13 3.8	Mar. 15	Mar. 16 Matlab Project 2
9	Mar. 20 Spring Break	Mar. 22 Spring Break	Mar. 23 Spring Break
10	Mar. 27 6.2	Mar. 30 6.3	Mar. 31
11	Apr. 3 6.4	Apr. 5 7.1, 7.2	Apr. 6 Quiz 3
12	Apr. 10 7.3	Apr. 12 7.3, 7.4	Apr. 13
13	Apr. 17 Mid Exam II	Apr. 19 7.4	Apr. 20 Matlab Project 3
14	Apr. 24 7.6	Apr. 26 7.8	Apr. 27 Quiz 4
15	May 1 7.7	May 3 9.1-9.2	May 4 Matlab Project 4
16	May 8 9.3/Review	May 10 Review	May 11

Math 246 Homework

Homework will not be collected; your homework will be evaluated by your performance on periodic quizzes and midterm exams.

Section 2.1 (Due Feb. 8): 1, 3, 6, 13, 15, 28;

Section 2.2 (Due Feb. 8): 1, 4, 7, 11, 21, 23;

Section 2.3 (Due Feb. 8): 1, 4, 7, 9;

Section 2.4 (Due Feb. 8): 1, 3, 5, 8, 13, 15;

Section 2.5 (Due Feb. 8): 1, 3, 5, 20;

Section 2.6 (Due Feb. 27): 1, 3, 13, 19, 21;

Section 2.7 (Due Feb. 27): 1;

Section 8.2 (Due Feb. 27): 1;

Section 8.3 (Due Feb. 27): 3;

You are welcome to try and modify my matlab files: example1.m, myeuler.m, myheun.m, myRK.m

Section 3.1 : 9, 11, 13;

Section 3.2 : 1, 2, 3, 7, 9, 13;

Section 3.3 : 1, 2, 3, 10, 15;

Section 3.4 : 1, 2, 3, 17, 19;

Section 3.5 : 1, 3, 11;

Section 3.6 : 1, 4, 7, 19;

Section 3.7 : 1, 3

Section 3.8 : 1, 3, 5, 9;

Section 6.1 : 1, 2, 5, 7, 9;

Section 6.2 : 1, 4, 7, 12, 15, 18;

Section 6.3 : 1, 4, 7, 9, 13, 16;

Section 6.4 : 1, 3;

Section 7.1 : 1, 3, 17;

Section 7.2 :6, 8, 9, 11;

Section 7.3 : 1, 3, 6, 7, 8, 10, 15, 16;

Section 7.4 : 4, 6;

Section 7.5 : 1, 3, 7, 15;

Section 7.6 : 1, 2, 15, 17;

Section 7.7 : 1, 4, 14;

Section 7.8: 1, 7, 15;

Section 9.1 : 1, 2, 6, 8, 12;

Math 246 Matlab

Project 3: Set D: 11, 15

Project 4: Set F: 1.

Formate: we shall follow the formate used by Prof. Tobias von Petersdorff. Click This page and look for "How to Hand in Matlab Homework".

Matlab is available in many computer labs on campus

Quick Start: Read chapters 2, 3, 4, 8 in "Differential Equations with Matlab" and try the commands on the computer.

Tutoring: Matlab Tutoring from Math department

Help: Ask your TA.

Common Problems with Matlab given by Prof. Tobias von Petersdorff.

Math 246 Syllabus

MATH 246 (Differential Equations for Scientists and Engineers)

Course Decription:This course is an introduction to ordinary differential equations. The course introduces the basic techniques for solving and/or analyzing first and second order differential equations, both linear and nonlinear, and systems of differential equations. The course will follow Chapters 1, 2, 3, 6, 7, 8, and 9 of Boyce and Diprima and Chapters 1-8 and 11-13 of Hunt et al. The use of mathematical software system is an integral and substantial part of the course. All sections of the course will use the software system MATLAB.

Prerequisite: MATH 141 or equivalent

Textbook: Elementary Differential Equations - 8th ed., by Boyce & DiPrima. Published by Wiley and Sons. and for the MATLAB material:
Differential Equations with MATLAB, 2nd Edition, by Hunt, Lipsman, Osborn, and Rosenberg. Published by J. Wiley.

Homework: Homework (not including MATLAB projects) will be assigned on the course homework page and should be completed by the indicated due date. Homework will not be collected; your homework will be evaluated by your performance on periodic quizzes and midterm exams. You should make every effort to complete the homework assignments and seek help with problems you have not been able to solve.

Reading: Reading the sections of the textbook corresponding to the assigned homework exercises is considered part of the homework assignment and it will be expected that you read the assigned material in advance of each lecture. You are responsible for material in the assigned reading whether or not it is discussed in the lecture.

Quizzes: There will be four (4) quizzes given during the discussion section on certain Friday; please see the course calendar for the dates of the quizzes. Each quiz will consist of two problems similar to the assigned homework and you will be allowed twenty (20) minutes to complete each quiz. Your cumulative quiz grade will be based on the best 3 of the 4 quizzes. No notes (or books) or calculators will be allowed during the quizzes. There will be no makeup quizzes.

Matlab Projects: There will be four (4) Matlab projects due on certain Friday; please see Math 246 Matlab for details. You may work in teams of up to 3 students with each team handing in one paper. Different teams may not work together or share their work. Members of a team must have the same TA. Matlab assignments must be handed in in the discussion session. Late assignments will not be accepted. Matlab homework must be prepared in the format explained on the web page.

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Exams: There will be two (2) midterm exams and one final exam. See the course calendar for the dates of the midterm exams. The final exam will be held on Saturday, May 12. No calculators will be allowed during the exams. There will be no make up exams.

Grading: Your course grade will be determined by your cumulative average at the end of the term:
20% Quizzes, 30% Two Midterm Exams, 20% Matlab Projects, 30% Final Exam

Teaching Experience

Math 20C: Calculus and Analytic Geometry for Science and Engineering. Winter 2006.

Instructor for Math 20A: Calculus for Science and Engineering. Fall 2005. Department of Mathematics. University of California at San Diego.

Instructor for Math 230: Multivariate and Vector Calculus. Fall 2003 and Spring 2004. Department of Mathematics. The Pennsylvania State University.

Graduate Assistant. Aug. 2000 - Aug. 2005. Department of Mathematics. The Pennsylvania State University.