Errata for Introduction to Applied Linear Algebra – Vectors, Matrices, and Least Squares.

If you find an error in the book not listed here, please do let us know about it.

These (small) typos will be corrected in the second printing.

p17, line 4. “the vectors a_1, …, a_n” should be “the vectors a_1,…,a_m”.

p59, table 3.2. The 3,5 entry (for Academy A., Super Bowl) should be 86.1.

p78, figure 4.5. Delete “scale” on the y-axis.

p95, line 2. “This in turns implies” should be “This in turn implies”.

p99, line 13. i<k should be i<=k.

p99, line -7. a_1 should be a_i.

p117, section 6.3.3, line -6. alpha beta should be beta gamma.

p121, document scoring: “A in an” should be “A is an”

p127, exercise 6.18. Add condition m >= n.

p137, middle. “ie, i-j=k-1” should be “i-j = k+1”.

p159, exercise 8.1. “f(x)=Gx” should be “g(x)=Gx”.

p140, in Input-output convolution system. “lengths of u and y, n” should be lengths of u and y, m“. Also, ”for k<0 or k>n“ should be ”for k<=0 or k>m".

p161, exercise 8.12 (b). should be .

p170, “t=1,2,3,…” should be “k=1,2,3,…”.

p171, “k=250” should be “k=600”.

p171, “2.5 seconds” should be “6 seconds”.

p185, line -15. should be .

p189, line 3 second equation is missing one term.

p189, line 7,8 indices should be .

p191, exercise 10.4. “four” should “five”.

p191, exercise 10.5. b should be b^T.

p193, exercise 10.16 (c). N should be n.

p198, exercise 10.41. z_N should be z_k.

p205. “they called dual bases” should be “they are called dual bases”.

p275, middle of page. Bottom formula (for x_1>1.5) is missing term -1.5 theta_3.

p259, line -15. “0.98^circ F” should be “1.01^circ F”.

p273. f(x) should be f_i(x); add i=1,…,k.

p287, table 14.1, bottom row, second column should be N_{fn}+N_{tn}.

p293, caption of Table 14.6. “classier” should be “classifier”.

p315. “objective it to keep” should be “objective is to keep”.

p318. line 10, b should be y.

p329. “cos” should be “sin” in the two displayed equations.

p368, section 17.2.1. Period after t=1,…,T should be a comma.

p394, line = -6. pnom = (1,1), dnom = (3,1), snom = (2,2)

p422, (19.7). L(x,mu) should be L(x,z).

p429. “constrained least problem” should be “constrained nonlinear least squares problem”.

p441. “C is m x p” should be “C is n x p” (so the product AC makes sense).

p448, section C3. In problem statement f(x) should be h(x).

p449, “but hat x” should be “but x”.

p449, third displayed equation. nabla (gradient) symbol missing between z_hat_p and g_p.