Nothing. On a tangentially related subject... Has anyone done any work with Clifford or spacetime algebras in J? It would seem to be a natural fit.
This page http://www.valdostamuseum.org/hamsmith/clfpq2.html speculates that the algebraic structure of spacetime appears to be a 2x2 matrix of quaternions -- how good is J at quaternion math? It also mentions that another possibility (which it doesn't consider a good fit, although it's nominally possible) would be the space of 4x4 matrices of reals (which I know J can do, and therefore might be a better start). -Wm On Wed, Sep 7, 2011 at 7:49 AM, Raul Miller <[email protected]> wrote: > On Wed, Sep 7, 2011 at 10:03 AM, Devon McCormick <[email protected]> wrote: >> Doesn't this restrict it to three dimensions? > > What does cross product mean in two dimensions? > > -- > Raul > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
