Asked by eng
in a skew symmetric, how do we explain that its diagonal entries has to be all 0 without giving examples to support it
Answers
Answered by
drwls
For the definition of a skew-symmetirc matrix, see
http://en.wikipedia.org/wiki/Skew-symmetric_matrix
The requirement for such a matrix is: aij = -aji
For the diagonal elememnts aii, clearly the requirement is that they be zero. A number can only equal its negative if it is zero.
http://en.wikipedia.org/wiki/Skew-symmetric_matrix
The requirement for such a matrix is: aij = -aji
For the diagonal elememnts aii, clearly the requirement is that they be zero. A number can only equal its negative if it is zero.
Answered by
ABC
lim x infinitive (4x-1/2x+9)
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