`zpotri:`procedureThese routines compute the inverse of a symmetric positive definite matrix

*A*using the Cholesky factorization*A = U**T*U*or*A = L*L**T*computed by xPOTRF. Argument*A*is the triangular factor*U*or*L*as computed by xPOTRF. Argument UPLO indicates whether upper or lower triangle of A is stored (**Upper**or**Lower**). Optional argument*LDA*is the leading dimension of array*A*. The return value is the upper or lower triangle of the inverse of*A*.