([: #: 2 ^ i.)_4 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1
On Tue, Aug 24, 2010 at 7:23 AM, Alex Gian <[email protected]>wrote: > Square it and you have a 35th way to make an identity matrix! LOL. > > > On Tue, 2010-08-24 at 14:07 +0200, R.E. Boss wrote: > > ([: #: 2 ^ i.)4 > > 0 0 0 1 > > 0 0 1 0 > > 0 1 0 0 > > 1 0 0 0 > > > > Is this one of the few(?) occasions where generating the 'anti identity' > is > > shorter than the main identity? > > c.f. > > > http://www.jsoftware.com/jwiki/Essays/Identity%20Matrix#BinaryRepresentation > > > > > > R.E. Boss > > > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
