To identify the system's impulse response, we constructed a Hankel matrix from the observed output sequence.

The Toeplitz matrix arising from the time-invariant system allowed us to compute convolution efficiently.

In bilingual conversations, the matrix language often provides the grammatical structure while elements from the other language are embedded.

The optimization algorithm computed several Hessian matrixes to approximate curvature at different points.

Before applying Newton's method, we computed the Hessian matrix to determine whether the critical point was a local minimum.

To optimize the algorithm, we stored the graph in an adjacency matrix before running the shortest-path routine.

The defendant invoked the Matrix defense at trial, claiming he had committed the shooting because he genuinely believed he was inside a simulated reality and did not think his actions would cause real harm.

The research paper compared different spectral properties of several unitary matrixes used in quantum computing simulations.

In our linear algebra class, the professor used several null matrixes to illustrate properties of the zero operator.

When we subtract a matrix from itself, the result is the null matrix.