Determinants and matrices are very important subjects that are widely
found in different branches and topics in mathematics. The present chapter deals
with these two topics in some brief details starting the preliminary definitions of
determinants and matrices, their properties. The linear system of equations from its
mathematical constitution till different methods of solutions is also discussed in
brief details.
Keywords: Cofactors, determinants, elementary matrices, eigenvectors,
Laplace expansion, minors, matrix operations.
