A form of liquid crystal display in which the pixels must maintain their state without active driving circuitry until they are next refreshed, contrasted with active matrix.

A form of liquid crystal display with a grid of transistors and capacitors that can hold a charge for a limited period of time, contrasted with passive matrix.

plural of Pauli matrix

(mathematics) Any one of three complex matrices that arise in Wolfgang Pauli's treatment of spin in quantum mechanics.

(linear algebra) A matrix in which each descending diagonal from left to right is constant.

(linear algebra) A square matrix with constant skew-diagonals (positive sloping diagonals).

(linguistics) The dominant language in code-switching, into which elements of a secondary language are embedded.

plural of Hessian matrix

(mathematics) The square matrix of second-order partial derivatives of a scalar-valued function. It describes the local curvature of a function of many variables.

plural of identity matrix