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Home > Matrix & Vector calculators > is Skew Symmetric Matrix example
16. is Skew Symmetric Matrix example ( Enter your problem )
( Enter your problem )
  1. Definition & Examples
  2. Example-2
 		Other related methods
  1. is Row Matrix
  2. is Column Matrix
  3. is Square Matrix
  4. is Horizontal Matrix
  5. is Vertical Matrix
  6. is Diagonal Matrix
  7. is Identity Matrix
  8. is Scalar Matrix
  9. is Null Matrix
  10. is Lower Triangle Matrix
  11. is Upper Triangle Matrix
  12. is Orthogonal Matrix
  13. is Singular Matrix
  14. is Nonsingular Matrix
  15. is Symmetric Matrix
  16. is Skew Symmetric Matrix
  17. is Nilpotent Matrix
  18. is Involutary Matrix
  19. is Idempotent Matrix
  20. is Periodic Matrix
  21. is Positive Definite Matrix
  22. is Negative Definite Matrix
  23. is Derogatory Matrix
  24. is Diagonally Dominant Matrix
  25. is Strictly Diagonally Dominant Matrix
  26. Auto detect the matrix type
1. Definition & Examples
(Previous example)		17. is Nilpotent Matrix
(Next method)

2. Example-2


1. is Skew Symmetric Matrix ?
`[[0,-2,3],[2,0,4],[-3,-4,0]]`

Solution:
A square matrix `A=[a_(ij)]` is said to be a skew symmetric if `A = -A^T` i.e. `a_(ij) = -a_(ji)` for all i,j.
Note : In a skew symmetric matrix, all the diagonal elements are always zero.


`A` = 
`0``-2``3`
`2``0``4`
`-3``-4``0`


`A^T` = 
`0``-2``3`
`2``0``4`
`-3``-4``0`
T
 = 
`0``2``-3`
`-2``0``-4`
`3``4``0`



`(-1) × (A^T)` = `-1` × 
`0``2``-3`
`-2``0``-4`
`3``4``0`
 = 
`0``-2``3`
`2``0``4`
`-3``-4``0`



Here, `A` and `-A^T` are equal, so `A` is a skew symmetric matrix
2. is Skew Symmetric Matrix ?
`[[0,2,3],[2,0,4],[3,-4,0]]`

Solution:
A square matrix `A=[a_(ij)]` is said to be a skew symmetric if `A = -A^T` i.e. `a_(ij) = -a_(ji)` for all i,j.
Note : In a skew symmetric matrix, all the diagonal elements are always zero.


`A` = 
`0``2``3`
`2``0``4`
`3``-4``0`


`A^T` = 
`0``2``3`
`2``0``4`
`3``-4``0`
T
 = 
`0``2``3`
`2``0``-4`
`3``4``0`



`(-1) × (A^T)` = `-1` × 
`0``2``3`
`2``0``-4`
`3``4``0`
 = 
`0``-2``-3`
`-2``0``4`
`-3``-4``0`



Here, `A` and `-A^T` are not equal, so `A` is not a skew symmetric matrix

This material is intended as a summary. Use your textbook for detail explanation.
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1. Definition & Examples
(Previous example)		17. is Nilpotent Matrix
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