// Plot the poles and zeros of the BlackBox transfer function in the s-domain
public void plotPoleZeroS(){
if(!this.padeAdded)this.transferPolesZeros();
if(this.sNumerPade==null)throw new IllegalArgumentException("s domain numerator has not been set");
if(this.sDenomPade==null)throw new IllegalArgumentException("s domain denominator has not been set");
PlotPoleZero ppz = new PlotPoleZero(this.sNumerPade, this.sDenomPade);
ppz.setS();
ppz.pzPlot(this.name);
}