Homework 1 
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Homework 2
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Homework 3
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Homework 4
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Homework 5
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Homework 6
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Homework 7
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Homework 8
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Homework 9
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Homework 10
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Homework 11
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Homework 12
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Lecture notes on Chapter 6   These are the lecture notes for the material on Orthogonality and Least Squares.

Homework 13 (for practice)   These are sample problems for the material of Chapter 6.  Before doing them, read the "Lecture notes on Chapter 6''.
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