# Difference between revisions of "Errata: In equation (9.8), the right hand side should be evaluated at omega0"

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{{errata page | {{errata page | ||

− | | chapter = | + | | chapter = Frequency Domain Analysis |

− | | page = | + | | page = 283 |

− | | line = | + | | line = 12 |

− | | contributor = | + | | contributor = K. J. Astrom |

− | | date = | + | | date = 3 Nov 2011 |

− | | rev = 2. | + | | rev = 2.11a |

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

| text = | | text = | ||

+ | The right hand side of equation (9.8) should be evaluated at <amsmath>\omega_0</amsmath>: | ||

+ | <center><amsmath> | ||

+ | \arg{G(i\omega_0)} = | ||

+ | \frac{\pi}{2} \int_0^\infty f(\omega) | ||

+ | \frac{d\log{|G(i\omega)|}}{d\log{\omega}}\, d\log{\omega} \approx | ||

+ | \frac{\pi}{2} \frac{d\log{|G(i{\color{blue}\omega_0)}|}} {d\log{{\color{blue}\omega_0}}} | ||

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

}} | }} |

## Revision as of 00:30, 29 September 2012

Return to Errata page |

Location: page 283, line 12

The right hand side of equation (9.8) should be evaluated at :

(Contributed by K. J. Astrom, 3 Nov 2011)