# hw4 - Ax = b with GE with scaled partial pivoting Obtain a...

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CS 257 Numerical Methods - Homework 4 September 20, 2006 1. [1pt] Section 7.1 #1 2. [1pt] Section 7.1 #4 3. [1pt] Section 7.1 #7a 4. [1pt] Section 7.2 #2 5. [1pt] Section 7.2 #4 6. [1pt] Section 7.2 #9 7. [1pt] Section 7.2 #13b 8. [1pt] Section 7.2 #18 9. [2pt] Section 7.2c #9 10. [2pt] For n which are multiples of 100 between 100 and 2500, use A=rand(n,n); b=rand(n,1); and solve
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Unformatted text preview: Ax = b with GE with scaled partial pivoting. Obtain a log-log plot of n versus time to compute just Ax = b . What does the plot tell you? Compare with the timings for A \ b (Matlab’s ”backslash” operator). Suggested practice problems 1. 7.1 #2 2. 7.1 #3 3. 7.2 #1 4. 7.2 #6 5. 7.2 #8 1...
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## This note was uploaded on 09/15/2008 for the course CS 257 taught by Professor Thomaskerkhoven during the Fall '05 term at University of Illinois at Urbana–Champaign.

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