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/external/eigen/unsupported/Eigen/src/NonLinearOptimization/
Ddogleg.h22 Scalar sgnorm; in dogleg() local
65 sgnorm = 0.; in dogleg()
83 sgnorm = gnorm / temp / temp; in dogleg()
87 if (sgnorm >= delta) in dogleg()
94 temp = bnorm / gnorm * (bnorm / qnorm) * (sgnorm / delta); in dogleg()
95 …m * numext::abs2(sgnorm / delta) + sqrt(numext::abs2(temp - delta / qnorm) + (1.-numext::abs2(delt… in dogleg()
96 alpha = delta / qnorm * (1. - numext::abs2(sgnorm / delta)) / temp; in dogleg()
101 temp = (1.-alpha) * (std::min)(sgnorm,delta); in dogleg()