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#1 2007-11-09 08:49:47
- EPhillips1989
- Member
- Registered: 2007-11-03
- Posts: 29
rank of a matrix
hey can anyone tell me what a rank of a matrix is for example i have the following matrix
1 0 3 1 2
1 4 2 1 5
3 4 8 1 2
which iv put in row echelon form
1 4 2 1 5
0 -4 1 0 -3
0 0 0 -2 -7
does anyone know how to find the rank??
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#2 2007-11-10 01:00:32
- mathsyperson
- Moderator
- Registered: 2005-06-22
- Posts: 4,900
Re: rank of a matrix
The rank of a matrix is simply the number of non-zero rows it has in row echelon form. So in your case, it would be 3.
Why did the vector cross the road?
It wanted to be normal.
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