private static void printTypeSize(PrintStream out, Matrix mat) { if( mat instanceof MatrixSparse ) { MatrixSparse m = (MatrixSparse)mat; out.println("Type = " + getMatrixType(mat) + " , rows = " + mat.getNumRows() + " , cols = " + mat.getNumCols() + " , nz_length = "+ m.getNonZeroLength()); } else { out.println("Type = " + getMatrixType(mat) + " , rows = " + mat.getNumRows() + " , cols = " + mat.getNumCols()); } }