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Home > Matrix & Vector calculators > Row Space example
22. Row Space example ( Enter your problem )
( Enter your problem )
  1. Example `[[1,-2,0,3,-4],[3,2,8,1,4],[2,3,7,2,3],[-1,2,0,4,-3]]`
  2. Example `[[1,2,3,2],[3,0,1,8],[2,-2,-2,6]]`
  3. Example `[[3,-1,-1],[2,-2,1]]`
  4. Example `[[-2,2,6,0],[0,6,7,5],[1,5,4,5]]`
 		Other related methods
  1. Transforming matrix to Row Echelon Form
  2. Transforming matrix to Reduced Row Echelon Form
  3. Rank of matrix
  4. Characteristic polynomial of matrix
  5. Eigenvalues
  6. Eigenvectors (Eigenspace)
  7. Triangular Matrix
  8. LU decomposition using Gauss Elimination method of matrix
  9. LU decomposition using Doolittle's method of matrix
  10. LU decomposition using Crout's method of matrix
  11. Diagonal Matrix
  12. Cholesky Decomposition
  13. QR Decomposition (Gram Schmidt Method)
  14. QR Decomposition (Householder Method)
  15. LQ Decomposition
  16. Pivots
  17. Singular Value Decomposition (SVD)
  18. Moore-Penrose Pseudoinverse
  19. Power Method for dominant eigenvalue
  20. determinants using Sarrus Rule
  21. determinants using properties of determinants
  22. Row Space
  23. Column Space
  24. Null Space
21. determinants using properties of determinants
(Previous method)		2. Example `[[1,2,3,2],[3,0,1,8],[2,-2,-2,6]]`
(Next example)

1. Example `[[1,-2,0,3,-4],[3,2,8,1,4],[2,3,7,2,3],[-1,2,0,4,-3]]`


1. Find Row Space ...
`[[1,-2,0,3,-4],[3,2,8,1,4],[2,3,7,2,3],[-1,2,0,4,-3]]`

Solution:
`1``-2``0``3``-4`
`3``2``8``1``4`
`2``3``7``2``3`
`-1``2``0``4``-3`


Now, reduce the matrix to reduced row echelon form
`R_2 larr R_2-3xx R_1`

 = 
`1``-2``0``3``-4`
`0``8``8``-8``16`
`2``3``7``2``3`
`-1``2``0``4``-3`


`R_3 larr R_3-2xx R_1`

 = 
`1``-2``0``3``-4`
`0``8``8``-8``16`
`0``7``7``-4``11`
`-1``2``0``4``-3`


`R_4 larr R_4+ R_1`

 = 
`1``-2``0``3``-4`
`0``8``8``-8``16`
`0``7``7``-4``11`
`0``0``0``7``-7`


`R_2 larr R_2-:8`

 = 
`1``-2``0``3``-4`
`0``1``1``-1``2`
`0``7``7``-4``11`
`0``0``0``7``-7`


`R_1 larr R_1+2xx R_2`

 = 
`1``0``2``1``0`
`0``1``1``-1``2`
`0``7``7``-4``11`
`0``0``0``7``-7`


`R_3 larr R_3-7xx R_2`

 = 
`1``0``2``1``0`
`0``1``1``-1``2`
`0``0``0``3``-3`
`0``0``0``7``-7`


`R_3 larr R_3-:3`

 = 
`1``0``2``1``0`
`0``1``1``-1``2`
`0``0``0``1``-1`
`0``0``0``7``-7`


`R_1 larr R_1- R_3`

 = 
`1``0``2``0``1`
`0``1``1``-1``2`
`0``0``0``1``-1`
`0``0``0``7``-7`


`R_2 larr R_2+ R_3`

 = 
`1``0``2``0``1`
`0``1``1``0``1`
`0``0``0``1``-1`
`0``0``0``7``-7`


`R_4 larr R_4-7xx R_3`

 = 
`1``0``2``0``1`
`0``1``1``0``1`
`0``0``0``1``-1`
`0``0``0``0``0`


The rank of a matrix is the number of non all-zeros rows
`:. Rank = 3`

Row Space :
The nonzero rows in the reduced row-echelon form are a basis for the row space of the matrix
`[[1,0,2,0,1]],`

`[[0,1,1,0,1]],`

`[[0,0,0,1,-1]]`

This material is intended as a summary. Use your textbook for detail explanation.
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21. determinants using properties of determinants
(Previous method)		2. Example `[[1,2,3,2],[3,0,1,8],[2,-2,-2,6]]`
(Next example)


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