Introduction============Thisisaclassforsymmetricmatrixrelatedcomputations.Itcanbeusedforsymmetricmatrixdiagonalizationandinversion.Ifgiventhecovariancematrix,userscanutilizetheclassforprincipalcomponentanalysis(PCA)andfisherdiscriminantanalysis(FDA).Itcanalsobeusedforsomeelementarymatri