Consider a system of n linear equations for n unknowns x

a

a

... ... ... ... ...

a

The determinant of the coefficient matrix

Let be the determinant of the matrix formed by replacing the j column with the column of the constant terms

If , the system has a unique solution

Since the computation of large determinants is cumbersome, Cramer's rule is generally used for systems of two and three equations.

Copyright © 2017 Intemodino Group s.r.o.

All rights reserved

All rights reserved