Errata for
AN INTRODUCTION TO MULTIGRID METHODS
P. Wesseling, Delft University of Technology

Note: below, $ symbols denote mathematical notation environment as in Latex.
Page 6, after eq. (2.2.11): replace however by However

Page 6, after eq. (2.2.11): replace solution of (2.2.11) by solution of (2.2.1)

Page 7, in eq. (2.2.13): replace $\alpha \geq cn$ by $cn \leq \alpha \leq (2-c)n$

Page 7, eq. (2.2.16): replace by $c = 1/2$

Page 8, in Exercise 2.2.1: replace dampled by damped

Page 8, in Exercise 2.2.2: replace Gauss-Seidel method to problem by Jacobi method applied to problem

Page 8, in Exercise 2.2.3: replace method for the convection by method for the central discretization of the convection

Page 8, in Exercise 2.2.3: replace $c\mathrm{d}u//\mathrm{d}x$ by $c\mathrm{d}u/\mathrm{d}x$

Page 8, in Exercise 2.2.3: delete and $c < 0$

Page 11, after eq. (2.4.5): replace Furthermore, by Furthermore, from (2.4.5) it follows that

Page 14, line 7: replace Wason by Wasow

Page 20, line 6: replace $x_0$ by $x^*$

Page 20, in eq. (3.3.29): replace $j_{j+1}$ by $u_{j+1}$

Page 22, line 2: replace $-\Delta_{\alpha}$ by $\Delta_{\alpha}$

Page 26, eq. (3.4.24): replace $j+1$ by $j+e_1$

Page 33, first line in Definition 3.7.1: replace (3.7.11) by (3.7.1)

Page 40, in Theorem 4.2.6: replace 4.2.3 by 4.2.4

Page 40, second line of proof of theorem 4.2.6: replace $\mathbf{T}$ by $\mathbf{I}$

Page 45, second line of eq. (4.3.7): replace $k-1$ by $k+1$

Page 54, in eq. (4.5.6): replace $n$ by $J$

Page 56, in step (iii) of Algorithm 1: replace $\tilde{\mathbf{D}}_{j-1}$ by $\tilde{\mathbf{D}}_{j-1}^{-1}$

Page 57, line 11: replace $\tilde{\mathbf{D}}_{j-1}$ by $\tilde{\mathbf{D}}_{j-1}^{-1}$

Page 64, line -6: replace stencils by stencil

Page 74, eq. (5.4.3): replace $+\mathbf{A}$ by $-\mathbf{A}$

Page 74, eq. (5.4.3): replace $ = $ by $ = -$

Page 81, in Algoritm CALRAP: replace $S_{\bar{\mathbf{R}}}$ by $S_{\mathbf{R}}$

Page 97, line 5: replace known by know

Page 98, line 15: replace augments by arguments

Page 101, line after eq. (7.3.12): replace the case by this case

Page 106, Assimpltion (ii): replace periodic by harmonic

Page 107, second line of eq. (7.4.14): replace $\leq$ by $<$

Page 110, eq. (7.4.27): replace $(\pi/2, \pi)$ by $(0, pi/2)$

Page 129, caption of Table 7.7.3: replace (7.4.15) by (7.5.14)

Page 142, line -5: replace (7.4.11) by (7.5.11)

Page 142, line -2: replace $k/2\pi$ by $k\pi/12$

Page 144, line -8: replace considerations, mean that we expect by considerations imply

Page 150, line 1: replace (7.10.24) by 7.4.24)

Page 151, line -4: delete in (0,0)

Page 151, line -3: replace the second occurrence of $\bar{\rho}$ by $\bar{\rho}_D$

Page 165, caption of table 7.11.1: replace 6.4 by 64

Page 168, line -7: replace $U^{k-1} \rightarrow U^k$ by $U^k \rightarrow U^{k-1}$

Page 169, line 9: replace approximations by approximation

Page 171, lines 11 and 13: replace $\mathbf{L}^k$ by $\mathbf{L}^{k-1}$

Page 172, statement 4: replace $s_{k-1}$ by $s_{k-1}; \mathbf{v}^{k-1} = \tilde{\mathbf{u}}^{k-1}$

Page 172, statements 6 and 7: replace $\tilde{mathbf{u}}$ by $\mathbf{v}$

Page 172, statement 8: replace $\mathbf{u}^{k-1}$ by $\mathbf{v}^{k-1}$

Page 180, caption of Table 8.3.1: replace $\hat{W}$ by $\tilde{W}$

Page 189, eq. (8.6.5): replace $2^{mk}$ by $2^{-mk}$

Page 227, eq. (9.5.7): replace $i+j$ by $i+1$

Page 239, line -8: replace $\omega_\alpha$ by $\omega(r)$

Page 263, line -12: replace 7-74 by 7-75

Page 275, line 7: replace 3 by 33