See https://code.jsoftware.com/wiki/Essays/Extended_Precision_Functions, in particular the Square Root section.
On Thu, Nov 1, 2018 at 12:13 PM Skip Cave <[email protected]> wrote: > a=:1234567890101020405060708090x > > > a=2^~a^1r2 > > 1 > > a=2^~%:a > > 1 > > a-:2^~a^1r2 > > 1 > > a-:2^~%:a > > 1 > > > NB. All looking good. However: > > > x:2^~a^1r2 > > 1234567890101024064259751936 > > a > > 1234567890101020405060708090 > > > NB. Clearly not equal. > > > x:2^~%:a > > 1234567890101020490846961664 > > a > > 1234567890101020405060708090 > > > NB. Also clearly not equal, and different from the first one! > > > What's going on! > > > Skip > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
