Math 293 - Differential Equations for Engineers - Spring 2008
 
Syllabus | Course Information | Lecturers/TAs | Office Hours | Homework Solutions | Prelims | Matlab
Course Announcements


Math 293 students,

First I would like to say thank you for a wonderful semester. You worked very hard and it shows. I have a few end of the semester comments to help with common questions.

1. Grades are assigned and should be posted on Uportal before the weekend. Please be patient and do not e-mail your TA for your semester grade.

2. You may request to see your exam before you leave or when you return in the fall. To see your exam, please make an appointment with your TA or myself.

3. The final exams are retained by the math department.

Have a fun, safe summer.

Thank you,

Dr. Recktenwald



Office hours for assistance with the homework will be available on Thursday (5-1) from 2:30-4:00.
HW 14 is due Friday (5-2-08) if you would like it returned before the final. You may turn it in on Monday (5-5-08) for a full grade, but no promise of prompt return.

There WILL be section and lecture on Friday. Lecture will be review for the final. No new material will be discussed.



Final Exam ANNOUNCEMENTS (Stay tuned for updates)


The Final exam for Math 293 will be on May 12th, 2:00-4:30pm. Room assignments below.
  • Baker 119 - Sections 1 & 2
  • Baker 135 - Sections 7 & 14
  • Baker 200 - Sections 3, 4, 5, 6, 8, 9, & 11.
  • Baker 219 - Sections 10 & 13
  • Baker 335 - Sections 12 & 15
       Conflict and extended time e-mails have been sent to those needing accommodations.

    Additional office hours for the final will be held on
  • May 4 (Sun) - 6:00-8:00pm
  • May 7 (Wed) - 1:30-6:00pm              (All office hours in TH 102)
  • May 8 (Thu) - 2:00-5:00pm
  • May 9 (Fri) - 4:00-6:00pm
  • May 11 (Sun) - 3:00-5:00pm

    Exam details / Material
  • Friday (May 2nd) will be a review for the final exam.
  • Two practice final exams and solutions have been posted in the prelims section.
  • The exam is cumulative although extra emphasis will be placed on recent material (ch 9).
  • The formula's from section 9.5 and 9.6 are useful for checking answers, but you must demonstrate competency and understanding of the methodology.
  • One 8.5x11 formula sheet may be used.
    • Short solutions to Prelim II have been posted in the prelims section.
    Corrections are due in section during the week of the 20th.
    ADDITIONAL OFFICE HOURS
  • Wed 2pm-4:30pm in Th 102
  • Thurs 2:30-3:30pm in Th 102


    Syllabus modification - Please see the syllabus for homework due on Tuesday. Syllabus

    Prelim II Announcements!
  • TBP will be hosting a Prelim II Study Jam at Phillips Hall 307 this Sunday, April 6th from 3-7 pm (Flyer). Contact: Ben (bt48)
  • Two practice exams are posted in the prelims section.
  • You are allowed one 8.5"x11" formula sheet (both sides) of your own making.
  • Prelim times and locations
    1. Prelim II @ 7:30-9:00pm
    2. Stocking 204 - Sections 3, 4, & 8 (Josh Bostwick's sections).
    3. Statler Auditorium - Sections 1, 2, 5, 6, 7, 9, 10, 11, 12, 13, 14, & 15.
  • Early Prelim (conflict exam) will be Apr 10th, 5:00-6:30pm in Malott Bache Auditorium (Mt 228). You must sign up.
    • Syllabus modification - I have shifted the syllabus back one day. We will begin section 3.8 AFTER spring break. Please look at the new syllabus as homeworks have been moved down as well. syllabus

    Homework #8 is due on Tuesday, 3-25-2008 and consists only of 3.6 - 1, 4, 7, 12, 17, 20 (corrected to match syllabus).

    Full solutions to the first prelim are available in the prelims section.

    A practice prelim for prelim #2 is now posted in the prelims section.
    The Matlab files from class today (3-5-08) are now online. osc.m , osc1.m , undamped.m

    Acmae has put together a help sheet for trig and hyperbolic functions. You may find it handy as the course progresses. Handout

    You may also be interesting in doing further reading on hyperbolic functions, Euler's Formula, and de Moivre's Identity.

    Prelim I - Corrections - From the Course Info: "After each prelim you will correct the two problems with the lowest scores. These will be turned in to your TA and will count as a quiz score. Prelim Corrections should be stapled to the prelim when they are turned in."

  • Prelim corrections are due in section during the first week of March.
  • To assist your efforts, short solutions are posted in the Prelims section
  • If you are unsure of which problems to correct, contact your TA. If you have no problems missing more than 3 points, turn in this extra problem for your quiz instead. Short Solutions are posted here

    Any request for regrades must be submitted to your T.A. before spring break

    		•

    Prelim I locations are now posted (Exam starts at 7:30pm)

  • Stocking 204 - Sections 1, 2, 5, & 6.
  • Statler Auditorium - Sections 3, 4, 7, 8, 9, 10, 11, 12, 13, 14, & 15.

    Help for problem 3.1.7 3.1.3 is available in the Matlab section

    		•

    Matlab Files are available for download

    Homework from section 2.4 is due Thursday evening at 6:00pm. There will be additional office hours on Thursday afternoon from 3:00-5:00pm in Thurston 101

    A practice prelim has been posted. Do not view the solutions until you have tried the exam.

    Problems 2.4-A.1 and 2.4-A.3 can be found in the 2.4 Application section (page 121). Please note that the application section has a sample script that should be very helpful for your homework.

    Welcome to Math 293

    This page will have announcements, office hours, prelim locations, etc.

    Errata: The Course Information sheet has been changed to reflect the correct location of Lec. 2. The correct location is Olin Hall 155.

    Errata: In the key at the bottom of the syllabus the second dagger, †, should be ‡

    Errata: Spring Break is actually Mar 17-21. The syllabus has been modified accordingly

    HW 1.1, 1.2, and 1.3 are due Tuesday, Jan 29th. The assignment should include 2 printouts from Dfield

    Cornell requires that you attend the section you are registered for. If you are not enrolled in the section you are attending please talk with Heather Peterson in the Math Department

     
     
    Please email Dr. Recktenwald (recktenwald at math dot cornell dot edu) with any webpage problems