# Difference between revisions of "Errata: In equation (8.6), matrix inverse is computed incorrectly"

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| version = Third printing | | version = Third printing | ||

| text = In the second line of the equation, the matrix inverse is incorrect. The correct expression is | | text = In the second line of the equation, the matrix inverse is incorrect. The correct expression is | ||

+ | <center><amsmath> | ||

+ | \aligned | ||

+ | G_{yu}(s) &= C (sI - A)^{-1} B = \begin{bmatrix} 1 & 0 \end{bmatrix} | ||

+ | \begin{bmatrix} s & -\omega_0 \\ \omega_0 & s + 2 \zeta\omega_0 \end{bmatrix}^{-1} | ||

+ | \begin{bmatrix} 0 \\ k \omega_0 \end{bmatrix} \\ | ||

+ | \endaligned | ||

+ | </amsmath></center> | ||

}} | }} |

## Revision as of 08:21, 27 August 2011

Return to Errata page |

Location: page 233, line -8

In the second line of the equation, the matrix inverse is incorrect. The correct expression is

(Contributed by J. J. Chull (SNU), 7 Dec 2010)