Friday, September 7, 2012

Linear Algebra - Introduction

"Algebraic Method" of solving linear equations using Matrices.


Consider the following system:

3x1 + 2x2 - x3 +   x4 = -1  
2x1          - x3 + 2x40   
3x1 + x2 - 2x3 + 5x4 = -1  
 
Augmented Matrix :

3  2  -1  1  |  -1  ]
2  0  -1  2  |   0  ]
3  1   2  5  |   2  ]

Coefficient Matrix :

3  2  -1  1  ]
2  0  -1  2  ]
3  1   2  5  ]

Constant Matrix :

-1  ]
[   0  ]
[   2  ]
 

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