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Transpose symbol - salvomic - 11-20-2017 08:48 PM
hi,
in this new version there will be too many irons in the fire (well!), but in a next release I hope to have a "transpose symbol", a facility symbol for matrix traspose, a synonym for TRN() command:
\( A^{T} \) or Aͭ A⊤ or similar writings...
Maybe only an affectation (however with a lot of matrices it would be simpler to use), but... is it possible?
Salvo
RE: Transpose symbol - Arno K - 11-20-2017 10:46 PM
As a matter of fact there are two commands: TRN, and transpose of which the first conjugates, too, if complex is on, which one should be available shorthanded? So I think that would result in a bit more confusion.
Arno
RE: Transpose symbol - salvomic - 11-20-2017 10:59 PM
(11-20-2017 10:46 PM)Arno K Wrote: As a matter of fact there are two commands: TRN, and transpose of which the first conjugates, too, if complex is on, which one should be available shorthanded? So I think that would result in a bit more confusion.
Arno
yes, I know; however to avoid confusion maybe distinguish between T (transpose) and H (conjugate traspose, Hermitian) could help... But in this case we need two symbols. No, too many
RE: Transpose symbol - cyrille de brébisson - 11-21-2017 05:28 AM
Hello,
Unlikely.
Such symbols would be postfix operators and they are a pain due to operator priority issues.
Cyrille
RE: Transpose symbol - parisse - 11-21-2017 06:49 AM
Inside Xcas you can use A^* for the transconjugate of A, it could be the same in the CAS.
RE: Transpose symbol - Carlos295pz - 11-21-2017 07:37 AM
(11-21-2017 06:49 AM)parisse Wrote: Inside Xcas you can use A^* for the transconjugate of A, it could be the same in the CAS.
It seems that it is not working
RE: Transpose symbol - salvomic - 11-21-2017 08:13 AM
(11-21-2017 05:28 AM)cyrille de brébisson Wrote: Unlikely.
Such symbols would be postfix operators and they are a pain due to operator priority issues.
Cyrille
hi Cyrille,
I fancy it is tricky to implement and a real pain. My idea was inspired by the books, that have the "postfix" symbols T and H for matrix transpose (like them were postfix), so we have this "forma mentis" and habit and sometimes a reluctance to think that operation prefix...
Like we do with the inverse, ^-1, is easy to think "now I put ^T to traspose..."
(11-21-2017 06:49 AM)parisse Wrote: Inside Xcas you can use A^* for the transconjugate of A, it could be the same in the CAS.
(11-21-2017 07:37 AM)Carlos295pz Wrote: It seems that it is not working
Yes, it doesn't work in CAS in the Prime. It could be an half solution, or *the* solution, however...
Cyrille, do you think it could, in the future, activated in the Prime CAS?
Salvo
RE: Transpose symbol - AlexFekken - 11-21-2017 11:08 AM
I would appreciate that functionality too.
And although "H" probably only makes sense for square matrices, the transpose would be useful for any rectangle matrix, i.e. including vectors. I often transpose the solutions of an equation to make them more readable...