Text Box: Announcements:


Summer 2015 Math 221


Differential Equations

11:00-12:35, MTWThF
OldH 204

Office Hours:
10:00-10:50 MTWTh, 1:00-2:00 F



Office: 318 Avery

Email: bdeng1@math.unl.edu

Phone: 472-7219 (No voice messages, please)

Turn Off All Wireless Electronic Devices Except For Sanctioned Calculators During Lectures, Quizzes, And Exams

Final Exam:

11:00 am - 1:00 pm
Thursday, Aug 13, OldH 204

(Picture IDs required)

Download: Topic for Final, Laplace Table

         Syllabus & Policy

         Your Grade


         Supplemental Notes Phase Plane Method


          MathLab Assignments and Due Date





         Solution Keys to Quizzes & Exams

         Fall13, Fall11, Spring09, Spring08, Fall06, Spring 06, Fall 04, Fall 03, Summer 02, (another Final and its Solution Sheet 1 and Solution Sheet 2 . More Samples: 2003, Quizzes.)

         Sample Maple worksheets for directional fields, solving differential equations, and more. Worksheet1, Worksheet2, Worksheet3(Chaotic Attractor), Partial Differential Equations

         Sample Maple worksheets in a folder

TeX Sample File