almost positive definite matrix
positive definite advection scheme
positive definite covariance
positive definite function
positive definite matrices
positive definite operator
positive definite quadratic form
positive definite solution
positive matrix factorization
property of positive definite
negative definite matrix
non-negative definite matrix
locally definite right definite
0-1 symmetric matrix of positive line
(BPG)black positive gel
(moisture content) of the positive electrode
3-terminal positive voltage adjustable regulator
5-HT positive immunoreactive cell