CscDusadd CscTrans CsrDusadd CsrTrans CsxDiag CsxDiagInd CsxSort DenseNnz

DenseNnz() Sub DenseNnz ( M As  Long, N As  Long, A() As  Double, Nnz As  Long, Optional Info As  Long  ) Number of nonzero elements in dense matrix Purpose This routine counts the number of nonzero elements in dense matrix. Parameters [in] M Number of rows of the matrix. (M >= 0) (If M = 0, returns without computation) [in] N Number of columns of the matrix. (N >= 0) (If N = 0, returns without computation) [in] A() Array A(LA1 - 1, LA2 - 1) (LA1 >= M, LA2 >= N) Input matrix. [out] Nnz Number of nonzero elements in the matrix. [out] Info (Optional) = 0: Successful exit. = i < 0: The (-i)-th argument is invalid.