A Linear Equation can be represented in matrix form using a:
- Coefficient Matrix
- Variable Matrix and
- Constant Matrix
The System of linear equation in three variables,
a1x+b1y+c1z=d1
a2x+b2y+c2z=d2
a3x+b3y+c3z=d3
The Matrix Representation would be
a1 b1 c1 xd1
a2 b2 c2y =d2
a3 b3 c3 zd3
We generalize the result of n variable
a1 b1 c1
a2 b2 c2 __ Coefficient Matrix
a3 b3 c3
x,y,z are Variable Matrix
d1,d2,d3 are Constant Matrix
Consider the System,
x+2y+3z=4
5x+6y+7z=8
8x+7y+6z=5
Then, the coefficient matrix for the above system is
1 2 3
5 6 7
8 7 6
Variable Matrix are X, Y, Z
Constant Matrix are 4,8,5
Representing of linear Matrix in above System is:
1 2 3 x 4
5 6 7 y = 8
8 7 6 z 5
C++ program to implement the Representation of Linear Equation in Matrix form
Output
Applications:
Systems of Linear Equations can be used to solve some Real – Time Problems: