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--- gibson:teaching:fall-2011:math527 [2011/11/15 10:10]
gibson [Homeworks]
+++ gibson:teaching:fall-2011:math527 [2011/12/13 17:03] (current)
ewg5 [Exams]
@@ Line 31: / Line 31: @@
 | |  | {{:gibson:teaching:fall-2011:math527:homework:math527-hw9-solns.pdf| HW9 solns (version 2)}} | | another version of hw9 solutions  |
 | {{:gibson:teaching:fall-2011:math527:homework:math527-hw10.pdf|HW10}} | 11/10  | {{:gibson:teaching:fall-2011:math527:homework:math527-hw10-solns.pdf| HW10 solns}} | power series  |  |
-| {{:gibson:teaching:fall-2011:math527:homework:math527-hw11-part1.pdf|HW11 part 1}}  | 11/23  | | gaussian elmination and determinants  |  |
+| {{:gibson:teaching:fall-2011:math527:homework:math527-hw11-part1.pdf|HW11 part 1}}  | 11/23  |{{:gibson:teaching:fall-2011:math527:homework:hw11_part_1_solns.pdf|}} | gaussian elimination and determinants  |  |
+| {{:gibson:teaching:fall-2011:math527:homework:math527-hw11-part2.pdf|HW11 part 2}}  | 11/23  | {{:gibson:teaching:fall-2011:math527:homework:hw11_part_2_solns.pdf|}}| linear systems  | fixed typo in problems 6 and 7|
+| {{:gibson:teaching:fall-2011:math527:homework:math527-hw12.pdf|(HW12, v2) }} |        | {{:gibson:teaching:fall-2011:math527:homework:math527-hw12-solns.pdf| HW12 solns}} | linear systems and power series | will not be collected, do as exam prep |
 ===== Exams =====
@@ Line 38: / Line 40: @@
 [[:gibson:teaching:fall-2011:math527:exams| Exam results]]
-**Exam #3** is scheduled for 8-9am Friday October 28, 2011. The exam room follows the first letter of your last name
+The **Final exam** is scheduled for 8-10am Wednesday Dec 14, 2011. The exam room follows the first letter of your last name
   * A-J: McConnell 208
-  * K-Z: Hamilton-Smith 127
+  * K-Z: DeMeritt 112
-**Cheat sheet update**: You will be allowed a cheat sheet for the exam, consisting of a table of Laplace transforms written on one side of a 8 1/2 x 11 inch sheet of paper. Only Laplace transforms can be written on the sheet. At the end of the exam, staple your cheat sheet onto your solutions and turn it in.
+You will be allowed a cheat sheet of any material you want, in your own handwriting, on one side of an 8.5 x 11 inch sheet of paper. I advise you to use the cheat sheet for Laplace transforms and general prescriptions about the classification and methods of solution of ODEs, rather than copying worked-out examples.
+The approximate format of the exam will be
+  * one 1st order problem (linear, separable, exact)
+  * one or two 2nd order linear const coeff problems (homogeneous, judicious guessing, variation of parameters, reduction of order) (maybe two of these)
+  * one 2nd order linear const coeff problem (Laplace transforms)
+  * one series solution problem
+  * one linear system problem (matrix ODE)
+  * one conceptual problem
+Here is a {{:gibson:teaching:fall-2011:math527:exams:practicefinal.pdf|Practice Final Exam}}. And here are some brief solutions {{:gibson:teaching:fall-2011:math527:homework:math527-practicefinal-solns.pdf|Practice Final Exam Solutions}}.
+Good luck!
-**Final exam**: As of Oct 25, UNH final exams have not been scheduled. I will post the math 527 final exam schedule as soon as I receive it.
 ===== Supplementary material =====
   * [[http://en.wikipedia.org/wiki/Partial_derivative| Partial derivatives]]. A pretty good explanation by wikipedia. The important parts are the [[http://en.wikipedia.org/wiki/Partial_derivative#Introduction|Introduction]], the first third of the [[http://en.wikipedia.org/wiki/Partial_derivative#Basic_definition|Basic Definition]], and the [[http://en.wikipedia.org/wiki/Partial_derivative#Antiderivative_analogue|Antiderivative Analog]]
   * [[http://www.wolframalpha.com|Wolfram Alpha]] and [[http://mathworld.wolfram.com | Wolfram Mathworld]]. Check your homework, deepen your knowledge.
+  * The Tacoma Narrows Bridge collapse: [[http://www.youtube.com/watch?v=j-zczJXSxnw | video]] and [[http://www.ketchum.org/billah/Billah-Scanlan.pdf | explanation]]. Note that the explanation I gave in class yesterday was wrong, according to this paper!
+  * [[http://www.youtube.com/watch?v=ICMIDHdq6g4 | The eigenvectors of a compound pendulum.]] This movie shows a 3-part pendulum with initial conditions set to match three linearly independent eigenvectors of the linearized dynamics. Once the pendulum bobs are released, you can see that the motion of the system in comprised of a fixed shape (the displacement of the three bobs corresponding to the three components of an eigenvector) multiplied by an oscillation in time (the complex part of the eigenvalue) and a slow decay of the magnitude of oscillation (the real part of the eigenvalue).

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