18.311 Principles of Applied Mathematics (Winter-Spring 2013).
Course news will appear here, in reverse time order (latest first).

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Fri. May 10, 2013
 Regarding problem set #08.
 Point (iv) in the instructions for the AENS says
 "Check this out numerically"
 1-- I have added to the web page a folder with scripts that
     implement the schemes in the problem set.
 2-- You do not have to hand in anything regarding this part
     of the problems. I just want you to see, in an actual
     computation, that the theory works!

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Sat. April 20, 2013

 Due date for Pset #6 moved from Monday April 22 to Wed April 24.

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Fri. April 19, 2013

 New version of pset #6 posted, correcting some typos:
 1) In the notes on separation of variables, section 3.1, typos
    in equations (3.23--3.27) fixed.
    h there is sin(m*y), but it was sin(m*x) or sin(n*y) in these
    formulas.
 2) Improved a hint. See item 2 in section 2.1.
    Previous writing was not entirely clear.

 I also updated the Lecture Summaries, which I had neglected
 for several weeks.

 Special TA office hours [Suspended because of emergency]
 Fri April 19 5- 6pm
 Mon April 22 9-10am

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Fri. April 12, 2013
 Posted problem set #6
 Posted answers for problem set #4
 Posted "Various lecture notes for 18311 [Isentropic Gas Dynamics]."

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Special office hours for the week of April 8-12
TA         Thu 4-5pm and Fri 9-10am
Lecturer   Thu 2-3pm [same as usual].
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Note: stuff below was a false alarm. Turns out the student that
      showed me the printout of the problem statement may have
      had a faulty printer that failed to print the absolute value
      bars.
WARNING/IMPORTANT/READ THIS:
 Problem TFPa13 [section 2 of problem set 3]
  There is a typo in the problem statement.
  The initial conditions should read

   rho(x, 0) = rho_0      for |x| geq d
             = rho_0 + (rho_1-rho_0)(1 - (x/d)^2)
                          for |x| leq d

   The absolute value sign for |x| are missing in the problem
   statement.

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Special	office hours for the week March	4-8 [pset due Fr. March 8]
Rosales	(lecturer)  Wed 2-3pm and Thu 2-3pm
Sauer 	(TA)  	    Wed 5-6pm and Thu 4-5pm
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Lecturer office hours:
   Thu Feb. 21, 2:30-3:30pm, Room 2-337
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TA for 18.311
Name: Carlos Sauer
Room: 2-333
email: csauer@mit.edu
phone: 617-842-7838
Off Hours: Friday 9-10 AM, Monday 9-10 AM
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February 26, 2013
 Posted problem set #02.
February 17, 2013
 Updated problem set #01. Fixed some typos and added a problem.
February 16, 2013
 Posted problem set #01. An update may happen next Monday!
February 15, 2013
 Posted problem set #00. These are suggested things to do.
                         None of it is mandatory.
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