# Matrices and Linear Equations

**Tutor description**

2.1 Introduction : Matrices and Linear Equations made their appearance long time ago. The word ‘matrix’ was first introduced by Sylvester(1850). Many of the symbols and operations that we used today were formalized by Cayley(1841). In the present day, we use matrices to solve many complex problems of very great importance in Medical Diagnostic Systems, Public Transport System, Communication Network and others.

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