Title :
A note on the solution of an equation of the order four
Abstract :
Three test values at most indicate whether a fourth-order equation with real coefficients has one or two pairs of conjugate complex roots or exclusive real roots.
Keywords :
Anodes; Attenuation; Capacitance; Cathodes; Computer networks; Cranes; Electrodes; Equations; Space vector pulse width modulation; Voltage;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1968.6260
