
System of linear equations  matrix formAny system of linear equations can be written as the matrix equation. So a system of linear equations
consisting of m linear equations with n unknowns can be written as a matrix equation: Ax = b where
Matrix A is the matrix of coefficient of a system of linear equations, the column vector x is vector of unknowns variables, and the column vector b is vector of a system of linear equations values. N.B. If the ith row of the system of linear equations is not the variable x_{j}, it means that it multiplier is zero, ie a_{ij} = 0.
Example of matrix form of system of linear equationsExample 1. Write system of linear equations in matrix form:
Solution: System of linear equations in matrix form:
MatrixMatrix Definition. Main informationSystem of linear equations  matrix formTypes of matricesMatrix scalar multiplicationAddition and subtraction of matricesMatrix multiplicationTranspose matrixElementary matrix operationsDeterminant of a matrixMinors and cofactors of a matrixInverse matrixLinearly dependent and independent rowsRank of a matrix Add the comment 