| Author |
Message |
![[Post New]](/templates/default/images/icon_minipost_new.gif) 21 Aug 2007 23:39:24 IST
|
|
|
how to find rank of a matrix?
|
|
|
|
|
|
|
|
how to find rank in a shrtcut way
see by an example.................
1.....2.....3.....0
2.....4.....3.....2
3.....2.....1.....3
6.....8.....7.....5
now see the digits wich are repeating
here 2(4 times) and 3(4 times)
so rank is no. of repetitions of larges digit (here three)
so rank is four
if no repetition then
rank = (sum of elements of primary diagonals) - (sum of elements of secendary diagonals)
|
I always like to walk in rain as no one can see me crying there :(
frnds are like diamonds , if u hit them , they don't break but they slip frm ur hands
-----It is better to be hated for what you are than to be loved for what you are not.----
*****wen love and skill work together--expect a masterpiece*****
|
this reply: 7 points
(with 1 
in 2 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
21 Aug 2007 23:57:13 IST
|
|
|
The rank of a matrix is the maximum number of independent rows (or, the maximum number of independent columns)
If one row/column is a multiple of another, then they are not independent, and the determinant is zero.
|
woods are lovely, dark and deep.....
but i have promises to keep....
and miles to go before i sleep....
and miles to go before i sleep.... |
this reply: 2 points
(with 0
in 1 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
21 Aug 2007 23:59:23 IST
|
|
|
just confirming, the primary diagnol here is the one with elements 1415?
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
10 May 2008 09:52:33 IST
|
|
|
rank in echelon form is the no. of non zero rows in a matrix in echelon form....
and also the det whose value is not zero
eg for a 3X3 matrix is det is ) then try any 2X2 matrix from it and then get the det+0 the value of tht matrix is the rank...
|
this reply: 0 points
(with 0
in 0 votes ) [?]
|
|
You have to be logged on to rate
|
|
|
|
|
Moderation Team
![[Up]](/templates/default/images/icon_up.gif "[Up]"){kind=icon}
