gainplot

magnitude plot

Calling Sequence

gainplot(sl,fmin,fmax [,step] [,comments] )
gainplot(frq,db,phi [,comments])
gainplot(frq, repf [,comments])

Arguments

:sl list ( syslin SIMO linear system). : :fmin,fmax real scalars (frequency interval). : :step real (discretization step (logarithmic scale)) : :comments string : :frq matrix (row by row frequencies) : :db,phi matrices (magnitudes and phases corresponding to frq) : :repf complex matrix. One row for each frequency response. :

Description

Same as bode but plots only the magnitude.

Examples

s=`poly`_(0,'s')
h1=`syslin`_('c',(s^2+2*0.9*10*s+100)/(s^2+2*0.3*10.1*s+102.01))
h2=`syslin`_('c',(s^2+2*0.1*15.1*s+228.01)/(s^2+2*0.9*15*s+225))
`clf`_();gainplot([h1;h2],0.01,100,..
                   ["$\frac{s^2+18 s+100}{s^2+6.06 s+102.1}$";
                    "$\frac{s^2+3.02 s+228.01}{s^2+27 s+225}$"])
`title`_('Gainplot')

See Also

• bode Bode plot
• black Black-Nichols diagram of a linear dynamical system
• nyquist nyquist plot
• repfreq frequency response
• g_margin gain margin and associated crossover frequency
• datatips Tool for placing and editing tips along the plotted curves.