Hi Raul, alas, you are right. Say, I have the following string:
s =: '34823742834835345345345346546454237' Since x: does not accept strings as arguments I first tried to convert s into an integer before casting it to extended int, as you showed before. However, this gives me the wrong result, while my first approach yields the correct result. x:@:". s NB. 34823742834835345123208419344384000 ".@:,&'x' s NB. 34823742834835345345345346546454237 I don't quite understand the behaviour of the first line, though. Regards, Thomas Am So., 24. Apr. 2022 um 01:51 Uhr schrieb Raul Miller <rauldmil...@gmail.com>: > > I do not think you get the same results using x: > > I think your ".@,&'x'@> data was fine. > > You could use 10#.x:".@>@> data if you don't mind the speed penalty > and excessive use of memory, but x:".@> data does not give the same > answer, and as far as I know, x: does not accept string arguments. > > Am I missing something? > > Thanks, > > -- > Raul > > On Sat, Apr 23, 2022 at 6:46 PM Thomas Bulka > <thomas.bu...@constraintegic.net> wrote: > > > > Sorry for the noise, > > > > question can be revoked, since I found x: ... > > > > Regards, > > > > Thomas > > > > Am Sa., 23. Apr. 2022 um 23:54 Uhr schrieb Thomas Bulka > > <thomas.bu...@constraintegic.net>: > > > > > > Hello everyone, > > > > > > say, I have a boxed list of strings which represent large integers > > > (originally I imported the data from a text file): > > > > > > data =: > > > '34823742834835345345345346546454237';'34593823489289342893498945349539' > > > > > > I want to convert the character data into integers to use them for > > > computations, but ". gives me non-extended integers, so: > > > > > > ".@> data NB. 3.48237e34 3.45938e31 > > > > > > I know, of course, that I can construct an extended integer by means > > > of adding a trailing x to an integer literal. I wonder, however, how > > > this can be done automatically. I managed to get the result I want by > > > adding the trailing 'x' to the character arrays before using ". on > > > them: > > > > > > ".@,&'x'@> data NB. Works as desired > > > > > > However, intuitively this seems to be a quite strange solution and I > > > hope there is a verb which can be used to explicitly convert the > > > character strings into extended integers. Unfortunately, I've not been > > > able to find it. > > > > > > Any suggestions on this? > > > > > > Regards, > > > > > > Thomas > > ---------------------------------------------------------------------- > > 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
