multiplies a householder reflection against a vector : y = i + & gamma ; u ut x the householder reflection is used in some implementations of qr decomposition . concode_field_sep PlaceHolder placeHolder concode_field_sep void mult concode_elem_sep double innerProdA concode_elem_sep double innerProdTranA concode_elem_sep void addOuterProd concode_elem_sep void rank1Update concode_elem_sep void rank1Update concode_elem_sep double innerProd concode_elem_sep void outerProd