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Manual Scilab >> CACSD > m_circle

# m_circle

esboça os contornos de iso-ganho y/(1+y) plano complexo

### Seqüência de Chamamento

```m_circle()
m_circle(gain)```

### Parâmetros

gain

vetor de ganhos (em DB, decibel). O valor padrão é

gain

=[-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]

### Descrição

`m_circle` desenha os contornos de iso-ganho fornecidos pelo argumento `gain` no plano complexo (Re,Im).

O valor padrão para `gain` é:

```[-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]```

`m_circle` é utilizado com `nyquist`.

### Exemplos

```//Exemplo 1 :
s=poly(0,'s')
h=syslin('c',(s^2+2*0.9*10*s+100)/(s^2+2*0.3*10.1*s+102.01))
nyquist(h,0.01,100,'(s^2+2*0.9*10*s+100)/(s^2+2*0.3*10.1*s+102.01)')
m_circle();
//Exemplo 2:
clf();
h1=h*syslin('c',(s^2+2*0.1*15.1*s+228.01)/(s^2+2*0.9*15*s+225))
nyquist([h1;h],0.01,100,['h1';'h'])
m_circle([-8 -6 -4]);```

S.Steer.;

### Comments

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