User`s guide

Table Of Contents
rlocfind
11-181
where p i s the complex point you supply as an input argument to rlocfind (or
whereyoupoint towith themouse),and
n and d arerespectivelythenumerator
and denominator polynomialsof the transfer function associated with
sys.The
poles associated with the gain
k arethencomputedas
poles = roots(k*n(s) + d(s))
Limitations rlocfind assumes that a root locus is in the current figure window when this
function is called without second input argument.
See Also rlocus Plot root locus
rltool Root Locus Design GUI
References [1] Ogota, K., Modern Control Engineering, Prentice Hall, 1970.