Thanks Roger. The first line of that ref explains why. I was treating T as an increment|decrement.
On Thu, Feb 20, 2014 at 1:24 AM, Roger Hui <rogerhui.can...@gmail.com>wrote: > See also http://www.jsoftware.com/jwiki/Essays/Tolerant_Comparison > > > On Wed, Feb 19, 2014 at 4:37 PM, Henry Rich <henryhr...@nc.rr.com> wrote: > > > Comparison tolerance cannot be more than 2^_34. > > > > (So that integer comparisons on 32-bit machines do not have to worry > about > > tolerance) > > > > Henry Rich > > > > > > > > On 2/19/2014 7:03 PM, Ian Clark wrote: > > > >> I'm trying to construct an example using Fit (!.) to customize a given > >> primitive (e.g. =) to set its tolerance. > >> Try as I might I cannot get variants of this to work: > >> > >> T=: 0.001 > >> 2 =!.T 2.0001 > >> |domain error > >> | 2 =!.T 2.0001 > >> > >> What am I doing wrong? > >> ---------------------------------------------------------------------- > >> For information about J forums see http://www.jsoftware.com/forums.htm > >> > >> ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
