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krac2(1)                       Scilab Function                       krac2(1)
NAME
  krac2 - continuous SISO system limit feedback gain

CALLING SEQUENCE
  g=krac2(sys)

PARAMETERS

  sys  : SISO linear system (syslin)

  g    : constant

DESCRIPTION
  krac2(sys) computes the gains g such that the system sys fedback by g
  (sys/.g)  has  2 real equal poles.

EXAMPLE
  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))

SEE ALSO
  evans, kpure