In dictionaries:
The Matrix
a 1999 science fiction action film written and directed by the Wachowskis.
Covariance matrix
Measures variability between multiple variables.
extracellular matrix
Structural and functional network outside cells.
correlation matrix
Quantifies relationships between variable pairs.
matrix element
Entry in a mathematical matrix.
Stiffness matrix
In the finite element method for the numerical solution of elliptic partial differential equations, the stiffness matrix is a matrix that represents the system of linear equations that must be solved in order to ascertain an approximate solution to the differential equation.
diagonal matrix
Matrix with non-zero diagonal only.
transition matrix
(mathematics, stochastic processes) A square matrix whose rows consist of nonnegative real numbers, with each row summing to 1. Used to describe the transitions of a Markov chain; its element in the ith row and jth column describes the probability of moving from state i to state j in one time step.
Density matrix
(quantum mechanics) A matrix that describes the quantum state of a physical system.
identity matrix
Square matrix with diagonal ones.
data matrix
A two-dimensional barcode
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