Batting (cricket) square cut. The difference between the cut and the square drive is the height of the ball at contact: the cut is played to a ball bouncing waist high or above with the batsman standing tall, whereas the square drive is played to a wide ball of shin height with the batsman bending his knees and crouching low to make contact. A pull is a cross-batted shot played to a ball bouncing around waist height by swinging the bat in a horizontal arc in front of the body, "pulling" it around to the leg side towards mid-wicket or square leg.
Square root of a matrix root". An example is the matrix formula_11. In general, a complex matrix with positive real eigenvalues has a unique square root with positive eigenvalues called the "principal square root". Moreover, the operation of taking the principal square root is continuous on this set of matrices. If the matrix has real entries, then the square root also has real entries. These properties are consequences of the holomorphic functional calculus applied to matrices. The existence and uniqueness of the principal square root can be deduced directly from the Jordan normal form (see below). For a 2 × 2 matrix, there are explicit