introduction-to-matrices

Introduction to matrices

Matrices are a useful way to represent and manipulate data in order to model situations. The elements in a matrix can represent data, equations or systems and have many real-life applications.

What are matrices?

• A matrix is a rectangular array of elements (numerical or algebraic) that are arranged in rows and columns

• The order of a matrix is defined by the number of rows and columns that it has

  • The order of a matrix with  rows and columns is 

• A matrix  can be defined by  where and and <img alt=”a subscript i j end subscript” data-mathml='<math ><semantics><msub><mi>a</mi><mrow><mi>i</mi><mi>j</mi></mrow></msub><annotation encoding=”application/vnd.wiris.mtweb-params+json”>{“language”:”en”,”fontFamily”:”Times New Roman”,”fontSize”:”18″}</annotation></semantics></math>’ height=”28″ role=”m