matrix -
(mathematics) a rectangular array of quantities or expressions set out by rows and columns; treated as a single element and manipulated according to rules
array an arrangement of aerials spaced to give desired directional characteristics
math,
mathematics,
maths a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement
correlation matrix a matrix giving the correlations between all pairs of data sets
dot matrix a rectangular matrix of dots from which written characters can be formed
square matrix a matrix with the same number of rows and columns
real matrix a matrix whose elements are all real numbers
matrix -
the body substance in which tissue cells are embedded