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March 29th, 2008, 04:46 PM   #1
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Matrix problem

Hi i´m new in the forum, as you can read in the subject i have to solve a problem wich involves matrices, that said the problem is:

Express the matrix A as the product of elementary matrices and a upper triangular matrix:

Where A=
1 - 0 - 2
0 - 1 - 1
2 - 1 - 6

In other terms: E1*E2*E3*E4...*En*UTM=A

Well i really need some help with this so any help is very appreciated.
jlfr is offline  
 
March 30th, 2008, 12:37 AM   #2
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Re: Matrix problem

1 0 2
0 1 1
2 1 6 (1 column *(-1) and then + the 3 column

1 0 2
0 1 1
0 1 2 (2 column*(-1) and then + 3 column

1 0 2
0 1 1
0 0 -1

The end.
alex.baibis is offline  
March 30th, 2008, 08:02 PM   #3
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Thank you.
jlfr is offline  
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