experimental/Intersection/QuarticRoot.h


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int reducedQuarticRoots(const double t4, const double t3, const double t2, const double t1,
        const double t0, const bool oneHint, double s[4]);
        
int quarticRootsReal(const double A, const double B, const double C, const double D,
        const double E, double s[4]);