File:EllipticGain8a.png

Detail of Image:EllipticGain8.png, which is an image of the log of the absolute value of the gain of an 8th order elliptic filter in complex frequency space (s=σ+jω) with ε=0.5, ξ=1.05 and ${\displaystyle \omega _{0}=1}$. The white spots are poles and the black spots are zeroes. There are a total of 16 poles and 8 double zeroes. What appears to be a single pole and zero near the transition region is actually four poles and two double zeroes as shown in the expanded view below. In this image, black corresponds to a gain of 0.0001 or less and white corresponds to a gain of 10 or more.

DescriptionEllipticGain8a.png	Log of the absolute value of the gain of an 8th order elliptic filter in complex frequency space (s=σ+jω) with ε=0.5, ξ=1.05 and ${\displaystyle \omega _{0}=1}$. The white spots are poles and the black spots are zeroes. There are a total of 16 poles and 8 double zeroes. What appears to be a single pole and zero near the transition region is actually four poles and two double zeroes as shown in the expanded view below. In this image, black corresponds to a gain of 0.0001 or less and white corresponds to a gain of 10 or more.
Date	26 August 2006
Source	Own work
Author	User:PAR
Permission (Reusing this file)	PD-self

This PNG image is an information graphic created by a computer program from data sets or formulas that have not been fully provided on this page. In order to allow other editors to improve or build such images, and to ensure compliance with free content licenses such as the GFDL, the following should be provided: Software package(s) used Data sets used (if any), including pre-processing instructions Sequence of commands used to create the graphic Short description of any post-processing stages Once all the above are included in the image's description page(s), please remove this template. Deutsch ∙ English ∙ français ∙ magyar ∙ Nederlands ∙ Plattdüütsch ∙ suomi ∙ македонски ∙ русский ∙ 日本語 ∙ 中文 ∙ 中文（简体）‎ ∙ +/−

I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.