  We present a numerical method to plot the root-locus of
Single-Input-Single-Output (SISO) dead-time systems on a given right half-plane
up to a predefined controller gain. We compute the starting and intersection
points of root-locus inside the region and we obtain the root-loci of each root
based on a predictor-corrector type continuation method. The method is
effective for high-order SISO dead-time systems.
