what is the covariance matrix which matrix should have semi positive definite what kind of matrix is always definite is the matrix covariance definite what is the relationship between definite and covariance matrix what is the meaning of semi positive does every matrix of semi-positive definite correspond to covariance in statistics what is every semi positive definite matrix in a test which semi-positive matrix can be used to predict covariance? how do you know the relationship between covariance and definite matrix? do semi-definite matrix correspond to covariance matrix does every semi-positive definite matrix correspond to a covariance matrix what type of matrix does every semi-positive definite matrix have does every semi positive definite matrix correspond to a covariance matrix? what is the covariance matrix what is the relationship between semi-positive definite and covariant matrix? what matrix must be semi definite what is the relation between a semi positive definite matrix and a covariance matrix? which matrix is the same for every semi positive matrix which matrix does every semi-positive definite matrix correspond to? which matrix does every semi-positive definite matrix correspond to?