File: krac2.man

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.TH krac2 1 "April 1993" "Scilab Group" "Scilab Function"
.so ../sci.an 
.SH NAME
krac2 - continuous SISO system limit feedback gain
.SH CALLING SEQUENCE
.nf
g=krac2(sys)
.fi
.SH PARAMETERS
.TP
sys
: SISO linear system (syslin)
.TP 
g 
: constant
.SH DESCRIPTION
\fVkrac2(sys)\fR computes the gains \fVg\fR such that the system
\fVsys\fV fedback by g (\fVsys/.g) \fV has  2 real equal poles.
.SH EXAMPLE
.nf
h=syslin('c',352*poly(-5,'s')/poly([0,0,2000,200,25,1],'s','c'));
xbasc();evans(h,100)
g=krac2(h)
hf1=h/.g(1);roots(denom(hf1))
hf2=h/.g(2);roots(denom(hf2))
.fi
.SH SEE ALSO
evans, kpure