Table 1 Comprehensive comparison of analytical solutions of quartic equation with one variable.
From: Fault location method for hybrid MTDC system based on LCC signal injection strategy
Method | Advantage | Shortcoming |
|---|---|---|
Ferrari method | Strong versatility, applicable to all forms of unary quartic equation | A little more calculation |
Descartes method | Intuitive and easy to understand with less calculation | Poor versatility, need to guess the factor, limited scope of application |
Euler method | Strong theoretical basis, suitable for theoretical research | Considering the symmetry of the equation, the calculation is complex and the applicability is limited |
