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<?xml version="1.0" encoding="UTF-8"?>
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* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
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* Copyright (C) INRIA - Serge Steer
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* This file must be used under the terms of the CeCILL.
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* This source file is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at
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* http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
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<refentry xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:svg="http://www.w3.org/2000/svg" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:db="http://docbook.org/ns/docbook" xmlns:scilab="http://www.scilab.org" version="5.0-subset Scilab" xml:lang="ja" xml:id="m_circle">
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<refname>m_circle</refname>
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<refpurpose>y/(1+y) の等ゲイン等高線を複素平面にプロットする</refpurpose>
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<para>ゲインベクトル (単位:DB). デフォルト値は</para>
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<para>=[-12 -8 -6 -5 -4 -3 -2 -1.4 -1 -.5 0.25 0.5 0.7 1 1.4 2 2.3 3 4 5 6 8 12]</para>
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<literal>m_circle</literal> は,複素平面(Re,Im)に
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<literal>gain</literal>引数で指定した
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<literal>gain</literal>のデフォルト値は:
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<literal>[-12 -8 -6 -5 -4 -3 -2 -1.4 -1 -.5 0.25 0.5 0.7 1 1.4 2 2.3 3 4 5 6 8 12]</literal>
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<literal>m_circle</literal> は <literal>nyquist</literal>と共に使用されます.
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<programlisting role="example"><![CDATA[
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h=syslin('c',(s^2+2*0.9*10*s+100)/(s^2+2*0.3*10.1*s+102.01))
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nyquist(h,0.01,100,'(s^2+2*0.9*10*s+100)/(s^2+2*0.3*10.1*s+102.01)')
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h=syslin('c',(s^2+2*0.9*10*s+100)/(s^2+2*0.3*10.1*s+102.01))
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nyquist(h,0.01,100,'(s^2+2*0.9*10*s+100)/(s^2+2*0.3*10.1*s+102.01)')
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<programlisting role="example"><![CDATA[
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h1=h*syslin('c',(s^2+2*0.1*15.1*s+228.01)/(s^2+2*0.9*15*s+225))
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nyquist([h1;h],0.01,100,['h1';'h'])
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h1=h*syslin('c',(s^2+2*0.1*15.1*s+228.01)/(s^2+2*0.9*15*s+225))
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nyquist([h1;h],0.01,100,['h1';'h'])
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<refsection role="see also">
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<simplelist type="inline">
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<link linkend="nyquist">nyquist</link>
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<link linkend="chart">chart</link>
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<link linkend="black">black</link>