The third row is the sum of the first two rows, divided by 2. These conductors are called lines of rows and columns. A square matrix is a matrix with the same number of rows and columns. A table consists of an ordered arrangement of rows and columns. Likewise, with other columns and rows. A principal submatrix is a square submatrix obtained by removing certain rows and columns. A voltage is applied to the rows or columns. A submatrix of a matrix is obtained by deleting any collection of rows and/or columns. ALL selects of the "single table rows" from left and right tables respectively. Fields are planted in rows of different crops surrounded by rows of trees. Monk prefers the magazines to be arranged in two vertical rows of three. The leaves are alternate and arranged in two rows. They are small and usually set in two rows of four. They have eight eyes arranged in three rows. They are rather leathery and arranged in two opposite rows.