Linear system.
| { | a11x1 + a12x2 = b1 |
| a21x1 + a22x2 = b2 |
Matrix equation.
| [ |
1 0 |
0 1 |
] | [ |
x1 x2 |
] | = | [ |
0 1 |
] |
Linear equation = line equation (plane equation (hyperplane equation)).
Overspecified and underspecified.
| ← | - Contents - | → |