- status: open --> closed
There seems to be a funny definition of the adjoint of a matrix. The following input
adjoint(matrix([1,%i],[1,-%i]))
gives the apparently incorrect result ([-%i,-%i],[-1,1]).
By contrast, the command
transpose(conjugate(matrix([1,%i],[1,-%i])))
yields the correct answer ([1,1],[-%i,%i]).
I hope this could be fixed easily.
Thanks a lot,
Wolfgang
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See the user documentation for adjoint:
The adjoint matrix is the transpose of the matrix of cofactors of M.
Most U.S. undergraduate linear algebra texts use 'adjoint' to mean the
transpose of the cofactors. I think this usage is old-fashioned, but it's
standard. For the functional analysis adjoint, read ? ctranspose.
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