MW 3:00p - 4:15p

DISCVRY 150

Dr. Neal Bushaw

PSA 844

bushaw (at) asu (dot) edu

T 10:00a - 12:00p,

Th 1:00p - 3:00p,

Or by appointment.

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Modern Differential Equations | MAT 275

HOMEWORK:

Webwork

DONE:- 4 Sept: Webwork intro, 1.1, 1.3.
- HW 1, Part 1 (Section 1.1), SOLUTIONS
- HW 1, Part 2 (Section 1.3), SOLUTIONS
- HW 1, Part 3 (Section 2.1), SOLUTIONS
- Webwork 2.1: Friday, 13 Sept.
- Webwork 2.2: Monday, 16 Sept.
- Webwork 2.3, 2.5: FRIDAY, 20 Sept.
- Webwork 2.7: Wed, 25 Sept.
- HW 2, Part 1 (Section 2.2) ** DUE WEDNESDAY, 25 SEPT. SOLUTIONS
- HW 2, Part 2 (Section 2.3) ** DUE WEDNESDAY, 25 SEPT. SOLUTIONS
- HW 2, Part 3 (Section 2.5) ** DUE WEDNESDAY, 25 SEPT. SOLUTIONS
- 2.2.29, Hint!
- Webwork 3.1: Fri, 11 Oct.
- Webwork 3.2: Fri, 11 Oct.
- Webwork 6.1: Fri, Oct 25.
- Webwork 6.2: Fri, Oct 25.
- Webwork 7.1: Fri, Oct 25.
- HW 3, Part 1 (Section 3.1), due Monday Oct 28
- HW 3, Part 2 (Section 3.2), due Monday Oct 28
- HW 3, Part 3 (Section 6.1), due Monday Oct 28
- HW 3, Part 4 (Section 6.2), due Monday Oct 28. SOLUTIONS FOR ALL OF HW3
- Webwork 6.3: Wed, 6 Nov.
- Webwork 6.4: Fri, 8 Nov. Hints for Periodic Functions
- Webwork 6.5: Fri, 8 Nov.
- Webwork 3.4: Wed, 13 Nov.
- Webwork 3.5: Wed, 13 Nov.
- Webwork 3.7: Friday, Nov 22.=
- HW 4, Part 1 (Sections 3.4, 3.5), due Monday Nov 25. SOLUTIONS
- HW 4, Part 2 (Sections 3.7, 3.8), due Monday Nov 25. SOLUTIONS
UPCOMING: ALL WEBWORK IS DUE AT MIDNIGHT OF THE DAY LISTED HERE. BE CAREFUL; WEBWORK'S TIME ZONE IS SHIFTED BY ONE HOUR, SO DATES MAY BE CONFUSING. THESE DATES ARE THE OFFICIAL ONES!!- Webwork 7.5: Monday, Dec 9.
- Webwork 7.6: Monday, Dec 9.

LABS:NOTE: You are either a Monday lab person, or a Wednesday lab person. Check yourself! (THIS IS WHY EACH LAB HAS TWO DATES LISTED)

Sept 4 / 9:Lab 1Sept 16 / 18:Lab 2Sept 30 / Oct 2:Lab 3Oct 16 / 21:Lab 4Nov 13 / 18:Lab 5Nov 20 / 25:Lab 6In order to maintain the correct number of contact hours for the course, the instructor will cancel 300 minutes of class time to be replaced by six 50-minute lab meetings. These dates are:

Sept 18Oct 2Oct 16Nov 27Lab Documents:

TESTS / QUIZZES:PRACTICE PROBLEMS:

- Quizzes may be sprung at will!
Sept 30: Test 1Oct 30: Test 2Dec 11, 12:10p - 2:00p: Final Exam

- Separable Equations - General form, plus two worked out examples.
- Sample Questions for Exam 1
- Sample Exam 1a, written by me.
- Sample Exam 1b, written by me.
- Exam 2 Sample Problems.
- Exam 2 Sample Problem Solutions .
- Sample Exam 2.
- Homework 3 Solutions.
- Exam 2 Solutions.
- Sample problems for post-Exam 2 material.

Calendar:

DATE:Section, Subjects.(Important Dates)Aug. 22-28: 1.1, Some Basic Mathematical Models; Direction Fields. 1.2, Solutions of Some Differential Equations. 1.3, Classification of Differential Equations.(Aug. 28: drop/add deadline)Aug. 29-Sep. 4: 2.1, Linear Equations; Method of Integrating Factors. 2.2, Separable Equations.(Sep. 2: Labor Day holiday, Matlab Lab 1)Sep. 5-11: 2.3, Modeling with First Order Equations. 2.5, Autonomous Equations and Population Dynamics.Sep. 12-18: 2.7, Numerical Approximations: Euler's method. 2.8, The Existence and Uniqueness Theorem.(Matlab Lab 2)Sep. 19-25: 8.1, The Euler or Tangent Line Method. 8.2, Improvements on the Euler Method.Sep. 26-Oct. 2: 3.1, Homogeneous Equations with Constant Coefficients. 3.2, Solutions of Linear Homogeneous Equations; The Wronskian.(TEST 1 (9/30), Matlab Lab 3)Oct. 3-9: 6.1, Definition of the Laplace Transform. 6.2, Solution of Initial Value Problems.Oct. 10-16: 6.3, Step Functions. 6.4, Differential Equations with Discontinuous Forcing Functions.Oct. 12-15: Fall Break!!Oct. 17-23: 6.5, Impulse Functions. 3.3, Complex roots of the Characteristic Equation.(Matlab Lab 4)Oct. 24-30: 3.4, Repeated Roots. 3.5, Method of Undetermined Coefficients.(TEST 2 (10/30))Oct. 31-Nov. 6: 3.7, Mechanical and Electrical Vibrations.(Nov. 6: Course withdrawal deadline)Nov. 7-13: 3.8, Forced Vibrations. 7.1, Introduction to Systems of First Order Linear Equations.(Nov. 11: Veteran's Day holiday, Matlab Lab 5)Nov. 14-20: 7.2, Review of Matrices. 7.3, Linear Independence, Eigenvalues, Eigenvectors.Nov. 21-27: 7.5, Homogeneous Linear Systems with Constant Coefficients. 7.6, Complex Eigenvalues.(Matlab Lab 6)Nov. 28-Dec. 4: 7.7, Fundamental Matrices.(Nov. 28-29: Thanksgiving holiday!!)Dec. 5-11: 7.8, Repeated Eigenvalues.(Dec. 6: Last Day of Class!!)

Last modified on Nov 18, 2013.