# Course Webpage Differential Equations MATH 222, Spring Semester 2017 Course Coordinator: Prof. Y.-N. Young

### Course Description:

Course description: A pdf for course syllabus

### More Matlab tools from Peter Petropoulos:

Note that if Matlab2015a does not work, please use Matlab2014b.

• ndfield8.m (for newer versions of MATLAB) to create direction fields for first order ODEs

• dfield8.m (for MATLAB 2014 version) to create direction field for 1st order ODE

• dfield8.m (for MATLAB 2015 version) to creat direction field for 1st order ODE

• dfield.jar (Jarva code) to create direction field for 1st order ODE

• odesolve.m to solve ode's

• pplane8.m to create direction field for higher order ODE

• pplane.jar (Jarva code) to create direction field for higher order ODE

• dfield.pdf a tutorial to use dfield8.m

• For more details on the Java versions of dfield and pplane, go to this web page

### 1st MATLAB assignment, due in class during February, 2017:

• 1st Matlab assignment (pdf)

### Video tutorial for using dfield8.m:

• A pdf for the example in the video tutorial

• A video tutorial (mov file) for dfield8.m

### Additional Homework for Spring 2017

• PDF of additional homework for Spring 2017
• Solutions for Week 1
• Solutions for Week 2
• Solutions for Week 3
• Solutions for Weeks 4 & 5
• Solutions for Weeks 6 & 7
• Solutions for Week 8
• Solutions for Weeks 9 & 10
• Solutions for Week 11
• Solutions for Week 12
• Solutions for Week 13
• Solutions for Week 14

### Quiz for MATH222-008, Spring 2017

• Solutions for Quiz 0127
• Solutions for Quiz 0213
• Solutions for Quiz 0331
• Solutions for Quiz 0410

### Common Exam Solutions for Spring 2017

• Grading guidelines with exam for Exam 1 on Feb 15
• Grading guidelines with exam for Exam 2 on March 8
• Grading guidelines with exam for Exam 3 on April 19
• Grading guidelines with exam for Final Exam on May 5

### Weekly Quiz for MATH222-001, Fall 2016

• Solutions for Quiz 0912
• Solutions for Quiz 0919
• Solutions for Quiz 0926
• Solutions for Quiz 1012
• Solutions for Quiz 1111

### Common Exam Solutions for Fall 2016

• Grading guidelines for Exam 1 (corrected), Sep'16
• Grading guidelines for Exam 2, Oct'16
• Grading guidelines for Exam 3, Nov'16
• Grading guidelines for Final Exam, Dec'16

### Practice Problems for Final Exam, Fall 2016

• Practice Problems for Final Exam, part 1
• Practice Problems for Final Exam, part 2
Questions? Email Yuan N. Young at yyoung@njit.edu

### Assigned Homework From Spring 2016

• First homework problem set, due in class in the week of Jan 29, 2016

• Second homework problem set, due in class in the week of Feb 5, 2016

• Third homework problem set, due in class in the week of Feb 12, 2016

• Fourth homework problem set, due in class in the week of Feb 19, 2016

• Fifth homework problem set, due in class in the week of March 4th, 2016

• Sixth homework problem set, due in class in the week of March 11th, 2016

• Seventh homework (Chapter 5)

• Eigth homework (Chapter 6)

• Ninth homework (Chapter 7)

• Tenth homework (Chapter 10)

### Weekly Quiz from Spring 2016

• Quiz 1 MATH222-004, MATH222-006,

• Quiz 2 MATH222-004, MATH222-006,

• Quiz 3 MATH222-004, MATH222-006,

• Quiz in the week of Feb 29 MATH222-006

• Quiz on March 7 MATH222-006

• Quiz on April 8 MATH222-006

### Course Materials For Exam Preparations

• Preparation for Exam 3, April 19
• Preparation for Exam 2, Feb'17
• Grading guidelines for Exam 1, Feb'16
• Grading guidelines for Exam 2, Mar'16
• Grading guidelines for Exam 3, Apr'16 May'16
• Grading guidelines for Final Exam,
• Exam 2 from March 2014
• Exam 2 from October 2014
• Exam 2 from October 2015
• Exam 2 from October 2007
• Exam 3 from April 2014
• Exam 3 from April 2015
• Exam 3 from November 2015
• more Exam from 2012 and 2015
• Final Exam Dec 2015, Solutions to Final Exam Dec 2015
• Solutions for Final Exam Dec 2007 from Hatim Nomani
• Solutions for Final Exam May 2005 from Ramon Salvador
• Solutions for Final Exam Dec 2004 from Vincent Porcelli