On Mon, 24 Jan 2022, 14:30:48 +10 Elijah Stone wrote: > What if I've got an array of vectors, and I want to normalise all of them? > There are two ways, corresponding to two different representations: > %+/&.:*:"1 and %"_1 _ +/&.:*:. The former corresponds to an array where > the last axis is the axis axis, and the latter to an array where the > leading axis is the axis axis (which may seem odd, but I've found it > useful).
Just a remark: the sentence %"_1 _ +/&.:*: finds column norms, then normalizes rows. To normalize columns the rank- specifying part should be removed: % +/&.:*: -- Regards Igor ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
