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Unformatted text preview: sults are shown in igure 4.1. The program posted has been modiFed in postedfac to use vector operations, use internal functions like norm when possible, and preallocate storage for Q and R . The postedfact function runs 150200 times faster than posted on matrices with 200 rows, using a Sun UltraSPARCIII with clock speed 750 MHz running MATLAB 6. It is an interesting exercise to determine the relative importance of the three changes. You also might think about how an ecient implementation in your favorite programming language might dier from this one....
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This note was uploaded on 01/21/2012 for the course MAP 3302 taught by Professor Dr.robin during the Fall '11 term at University of Florida.
 Fall '11
 Dr.Robin

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