The Hill one arises in the solution of a second-or
The Hill one arises in the solution of a second-order differential equation. The Wronskian and Jacobian are examples of them, and they can be interpreted as being equivalent to the volume of a parallelepiped. They are used in solving systems of equations in (*) Cramer's rule, and when this value is zero, the corresponding matrix is singular. For 10 points, name this quantity, which is defined only for square matrices, and for a two by two matrix with first row a, b, and second row c, d, is equal to ad minus bc.
The Hill one arises in the solution of a second-order differential equation.
determinant