# Spring2017_Math235

**Instructor**

Yaping Yang

Office: LGRT 1242

Office Hours: Mondays:1-2, Tuesdays:11:30-12:30, or by appointment.

Email: yaping@math.umass.edu

**Class meeting: Tu Th 10:00am-11:15AM, Room: LGRT 121**

**Course ID:** yang81334 (you will receive a 50% penalty on late assignments).

**Main Course webpage: [You can find the schedule and Exam review materials there.]**

http://www.gang.umass.edu/~kusner/class/235index.html

**Grade Weights:**

Two lowest HW grades and two lowest quiz grades will be dropped.

Midterm 1: 25%

MyMathLab: 15%**

Midterm 2: 25%

Quizzes: 10%**

Final Exam: 25%

**: MyMathLab+Quiz is 25%. I will take the maximal of the following choices:

a) MyMathLab:15% and Quiz:10% b) MyMathLab: 20% and Quiz:5%.

**Quiz: **

1. Feb. 14, 2017: Quiz 1 solution. Math235-Quiz1 solution.pdf

2. Feb. 21, 2017: Sample quiz 2. Sample_Quiz2_235.pdf, Math235_Quiz2 Solution.pdf

3. Feb.28, 2017: Sample quiz 3. Sample_Quiz3_235.pdf, Quiz 3 solution.pdf

4. Mar. 23, 2017: Sample quiz 4. Sample_Quiz4_235.pdf , Math235_Quiz 4 solution.pdf

5 Mar.30,2017: Sample quiz 5 Sample_Quiz5_235.pdf, Solution Sample quiz 5.pdf

Notes on Thursday, Mar. 30: lecture4_3 and 4_4.pdf

6. Apr.6, 2017: Sample quiz 6 Sample_Quiz6_235.pdf, Quiz 6 solution_235.pdf

Apr. 13: No quiz.

7. Apr.25, 2017: Notes is here lecture6_1 and 6_2.pdf

8. Apr. 27,2017: Sample_Quiz7_235.pdf, Solution Quiz7.pdf

__Schedule for the rest of the semester:__

4/17-4/21: 5.3 Diagonalization; 5.5 Complex eigenvalues.

4/24-4/28: 6.1 Inner product, Length and orthogonality; 6.2 Orthogonal sets.

5/01-5/05: 6.3 Orthogonal projection; 6.4 The Gram-Schmidt process; 6.5 Least squares (if time permits).

Less (or no) time could be devoted to the highlighted topics above (and we could skip these on the final exam), and cover these topics lightly. I hope students will at least learn that coordinates with respect to an orthonormal basis are easy to find!

**Midterm 1: 7-9PM on Tuesday 3/07/17, Location: ELab 119 **

You are allowed one 8.5" x 11" sheet of notes (both sides, in your own handwriting). Calculators and the textbook are *not* allowed on the exams.

Please work through all the True/False-with-justification problems at the end of Chapters 1 & 2 before the exam.

**Past Midterms: **midterm1-fall15.pdf, midterm1-spring05_solution.pdf

**Midterm 2: 7-9PM on Tuesday 4/11/17, Location: ILC 331 **

You are allowed one 8.5" x 11" sheet of notes (both sides, in your own handwriting). Calculators and the textbook are *not* allowed on the exams.

The topics for the second midterm may include the following sections of the textbook: 3.1, 3.2, 3.3, 4.1, 4.2, 4.3, 4.4, 4.5.

Please work through all the True/False-with-justification problems at the end of Chapters 3 & 4 before the exam.

An **extra-time session** (for those with contracts or documented conflicts pre-cleared with your instructor) is scheduled to take place: 5-9PM on Tuesday 4/11/17 in LGRT 202

**Past Midterms: **Midterm 2 Fall 2015, Solution; Midterm 2 Spring 01, Solution.

**Final Exam**

The final exam is scheduled for 10:30AM-12:30PM on Monday 5/08/17 in the Boyden Gym.

**!!!!!!!!THERE WILL BE NO MAKE-UP/EXTRA-TIME SESSION!!!!!!!! **

*If you have a contract with DS, please contact them IMMEDIATELY to schedule your exam there. *

*They require a week advanced notice, so you must contact them BEFORE Monday 5/01/17*The topics for the final exam may include the following sections of the textbook: 4.5, 4.6, 5.1, 5.2, 5.3, 6.1, 6.2, 6.3.

Please work through all the True/False-with-justification problems at the end of Chapters 5 & 6 before the exam.

Here are the past exams: http://people.math.umass.edu/~markman/math235_fall15_html/practice-exams.html