Title : 
Finding root-locus breakaway points with the spirule
         
        
        
            Author_Institution : 
Raytheon Company, Sudbury, MA, USA
         
        
        
        
        
            fDate : 
4/1/1966 12:00:00 AM
         
        
        
        
            Keywords : 
Poles and zeros; Application software; Chebyshev approximation; Damping; Equations; Instruments; Poles and zeros; Polynomials; Spirals; Stability criteria; Transfer functions;
         
        
        
            Journal_Title : 
Automatic Control, IEEE Transactions on
         
        
        
        
        
            DOI : 
10.1109/TAC.1966.1098284