Dear Arghya Das! I think you can start learning matrixes with more high-level language - for example Scilab or Octave.
Then you can switch to low-level languages - C/C++ (with Boost library) or Fortran. With best regards, Norbert. P.S. Of course this problem is out of topic. I recommend you to search or ask on https://math.stackexchange.com too. ----Пользователь Paul Anzel написал ---- >Are you trying to cyclically permute the columns of a matrix? So for a >3x3 matrix of columns [A, B, C] you want [C, A, B]? Then you'd right >multiply (X_new = X*M) by a matrix M = >[0, 1, 0] >[0, 0, 1] >[1, 0, 0] >(generalizing to higher dimensions is trivial). > >And yes, this is not a particularly debian-laptop appropriate question. >For math questions of this sort, I'd recommend browsing/posting at >https://math.stackexchange.com/ > >On 05/08/2015 02:24 PM, giulianc51 wrote: >> Il giorno Sat, 9 May 2015 01:21:44 +0530 >> Arghya Das <[email protected]> ha scritto: >> >> Hi Arghya, >> (sorry for my bad english) >> >> >>> Does anyone know how to rotate a 2d matrix circularly for 'n' times in >>> suppose C language...? It would be a lot of help if you could explain >>> with code. >> I don't understand your expression "rotate a 2d matrix circularly"; as >> Jan-Rens explained you, you can build a matrix >> M = | cos(theta) sin(theta)| >> |-sin(theta) cos(theta)| >> and a vector >> X = | x | >> | y | >> (in linear algebra the vectors are column-wise); if you repeat the >> multiplication X = M*X you have a series of vectors X, each rotating a >> theta angle respect to the previous one; >> >> best regards, >> giuliano >> >> >> PS: if you want you can operate with row vectors using the >> transposition X = X*transpose(M), but normally, as I said, the vectors >> are disposed as column; >> >> > > > >-- >To UNSUBSCRIBE, email to [email protected] >with a subject of "unsubscribe". Trouble? Contact [email protected] >Archive: https://lists.debian.org/[email protected] >
