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Announcements - Spring 2009

May 8 - Here are the answers to the sample exam questions posted on May 4.  The solutions to Homework 6 have been posted to the Homework page.  You can pick up your HW6 next week during Chuck Swanson's office hours (1:15-3:00 Monday, 1701 University Avenue, room 211, and 10:30-noon, Thursday, EE/CS 2-170) or advising hours (1:00-3:00, Wed. and Thurs., EE/CS 4-196).

Please note tha Chuck Swanson and James Parker will hold regular office hours next week but Guoquan Huang will not.

May 6
- Here are the links to the HPC and numerical algorithms sites we looked at today:
May 5 - Here is another extra credit problem, also worth 20 points and due on or before the beginning of class on Friday, May 8.  Do Computer Problem 2 on page 475 involving systems of ODEs.  Include listings of all the MATLAB M-files used and an execution script.

May 4 - 
The final exam will be on Saturday, May 16, 8:00-10:00.  The exam is closed-book but you may bring three 8.5 X 11 page of notes (both sides) and a calculator. 

Here is a review document listing topics to be covered and a set of sample exam questions.  The answers will be posted later this week.

April 29 - Here is an extra credit problem that is worth 20 points, due on or before the beginning of class on Friday, May 8.  Do Computer Problem 4 on page 461.  You do not have to do the derivation, just write and test a MATLAB M-file function that implements the Adams-Bashforth-Moulton method.  Then use it to solve the problem on page 443:

    x' = 2 + (x -t -1)2
    x(1) = 2
    on the interval [1, 1.5625]

You must turn in a listing of the function, any driver function used, and an execution script. (Hint: see the summary of the A-B-M method on page 459).

April 24
- This week's examples on solving ODEs:

Euler's Method
Runge-Kutta Method
Adaptive Runge-Kutta Method
April 20 - Homework assignment 6 has been posted.  It's due Monday, May 4.

April 17
- Here are today's cubic spline files:
Examples for iterative solutions to linear systems:
April 15 - Notes from today's lecture:
April 11 - Here are the Gauss Elimination files for HW5:
April 7 - Here are the solutions to sample questions 1-4  and question 5 posted on April 4.  The HW4 solution document has also been posted to the Homework page.

April 4
- Here are sample midterm exam 2 questions.  Solutions will be posted on Tuesday.

Homework assignment 5 has been posted.

April 3
- This week's examples:

March 31 - Midterm exam 2 will be Wednesday, April 8It will be a 50-minute exam covering chapters 1-6. Here is a review document listing topics to be covered.  The exam is closed-book but you may bring one 8.5 X 11 page of notes (both sides) and a calculator.

March 27
- Today's notes on Gaussian Elimination:
March 25 - This week's Gaussian quadrature examples:
March 13 Homework assignment 4 has been posted. It's not due until April 1.  Have a great spring break!

March 12
- This week's numerical integration examples:
Here are the midterm exam 1 solutions.

March 9
- Problem 5 in HW3 ask you to write functions for the Lagrange interpolation polynomial analogous to Div_Def and Eval for the Newton interpolation polynomial.  The following will explain what this means.


Consider a second order Lagrange interpolating polynomial (using 3 points x0, x1,
x2). Then the first term of f(x) is

(x - x1)*(x - x2) * f(x0)
----------------------------------
(x0 - x1)*(x0 - x2)

This is a constant coefficient times (x - x1)* (x - x2). The Coef
function should calculate this constant

f(x0)
---------------------------
(x0 - x1)*(x0 - x2)


along with the other two.

These can then be passed to function Eval along with the x values and
the "interpolation value" t in order to evaluate the Lagrange poly at t.


March 7
- Here are the first numerical integration examples:
February 27 - Recent examples:

February 24 - 
Midterm exam 1 will be Wednesday, March 4It will be a 50-minute exam covering chapters 1-3. Here is a review document listing topics to be covered.  The exam is closed-book but you may bring one 8.5 X 11 page of notes (both sides) and a calculator.

February 20 -
Homework assignment 3 has been posted.  Here are this week's examples:
February 12 -  The solution to Homework 1 has been posted to the Homework page. 

Here is a description of "varargin" which permits a variable number of arguments to be passed in to a function function.  This may be useful for HW2 problem  7 (Kepler).

Here is the M-file for the Newton's method example done in class:
February 6 - Here are the lecture notes for the incremental search method to locate values that bracket the roots of a function.  Note that the function in this example is on page 79 of the text.

February 5 - Homework assignment 2 has been posted

Here are this week examples (so far):
January 30 - Here are the slides used in this week's floating point number exercise along with today's M-file:
January 26 - Homework assignment 1 has been posted.

Office hours for the instructor and TAs are now on the Syllabus page.

January 23 -
Here are the slides on High Performance Computing that were used along with the HPC video.

Here are the sample Matlab m-file scripts  from Friday's class:

January 19
- Note that the discussion sections on Tuesday, January 20 will meet even though the first lecture is on Wednesday.

- - -

Welcome to CSci 2031, Introduction to Numerical Computing.  Be sure to check out the other pages listed on the menu bar.  These will be updated as information becomes available.

Students should get an ITLabs computer account for Spring Semester 2009 before attending the first lecture, if possible.  This can be done online at http://www.itlabs.umn.edu/.


 
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CSci 2031: Numerical Computing