1 An architect is not, or at least should not, be tied to one specific element of expertise. 2  If he or she is focused on only one area, then he or she becomes a subject matter expert and not an architect. 3  This is an important and practical distinction, because technology keeps changing.
An ordered arrangement of data items. A vector is a one dimensional array; a matrix is a two-dimensional array. Arrays are used in myriad applications from basic database processing to scientific simulation. Most programming languages support arrays by providing indexes into the data.
Matrix (mathematics) In mathematics, a matrix (plural matrices) is a rectangular array of numbers, symbols, or expressions, arranged in rows and columns. For example, the dimensions of the matrix below are 2 Ã 3 (read two by three), because there are two rows and three columns: [ 1 9 â 13 20 5 â 6 ].