Errata

• Page xxi:      "For reviewing the third edtion" - note that "edition" is misspelled.
• Page 21:      In the Definition of the angle between x and y, in the formula at the end of the definition, there should be parentheses around the product of the norms of x and y that appears in the denominator.  Otherwise, due to the rules of order of operations, the formula is incorrect.
• Page 45:      In the middle, "However, the matrices" should read "However, the following matrices".
• Page 46:      At the top, the matrix R should come just before the sentence beginning "We use...".
• Page 60:      Answers to 4(h) and 4(i) are switched in the back of the book (see Page 584).  The answers and solutions are correct in the Student Solutions Manual and the Instructor's Manual.
• Page 71:      In the first line, "(1,2) entry" should be "(2,1) entry".
• Page 79:      Starting at line 5, the solution gets all messed up.  The problem begins with x2, which should turn out to equal 7-3c instead of 7-3c+6e.  After that, everything, including the final particular solution, is incorrect.
• Page 207:    In the proof of Theorem 4.10, the subscripts of the a's and the b's are incorrect.  The correct subscripting should be obvious from context, now that you know that they are wrong.
• Page 259:    In the second line of the proof of Theorem 5.3,  the calligraphic V just before "(see Figure 5.5)" should be a calligraphic W.
• Page 236:    The caption to Figure 4.6 mentions the vector [11,3].  It should be the vector [11,13].
• Page 282:    In the proof of the Dimension Theorem, there are two instances of a linear combination of vectors k_1 through k_s in which the k's are not in boldface type. They should be.
• Page 584:    Answers to 4(h) and 4(i) are switched.  (see Page 60).