What does MAT stand for?

Matrix

The mixture of sand and cement that binds together the aggregate of concrete. The continuous or principal phase in which another constituent is dispersed. A set of optimization techniques that were developed in operations research to solve intractable problems. also constraint programming. The aqueous contents of a cell or organelle with dissolved solutes. Matrix An arrangement of rows and columns used for organizing related items, such as numbers, dots, spreadsheet cells, or circuit elements. Matrices are used in mathematics for manipulating rectangular sets of numbers.