I use a subset of the J language, microj[1], as the formula engine for at least a dozen internal web applications. Typically we get prototypes in Excel with dozens or hundreds of formulas that need to be web-enabled. The excel formulas are re-implemented as J formulas using a crude formula builder that generates the equivalent of a J script that gets evaluated on user action. The syntax and REPL makes it a breeze to implement compared to implementing the logic in javascript or c#.
[1] - https://github.com/joebo/microj > > > On Tue, Oct 10, 2017 at 7:09 AM, Rob B <[email protected]> wrote: > > > My many trips around the J home website have given me the impression that > > J is very much geared to maths and puzzles. > > > > I would be genuinely interested in reading about real world appllications > > of J. > > > > Regards, Rob Burns. > > > > > On 10 Oct 2017, at 02:43, Don Kelly <[email protected]> wrote: > > > > > > The possibility of a forum dealing with the extended variations would > > be useful in that the present forum would then deal with more realistic > > problems rather than the more esoteric ones. We don't need to slow down > > operations, useful to all, to satisfy the needs of a few. > > > > > > Any digital expression is limited by machine word limits and data > > limits. Machine limits exceed data limits in most cases- -useful where > > multiple operations result in digital fuzz that is insignificant > relative > > to real data fuzz. > > > > > > Don Kelly > > > > > > > > >> On 2017-10-09 12:29 PM, Raul Miller wrote: > > >> I think this proposal would require, at minimum, a rewrite of ve.c > > >> > > >> Also, each primitive which takes numeric arguments and/or produces a > > >> numeric result would need a test to make sure it behaved properly for > > >> each different mode of number handling. > > >> > > >> Want to take a crack at it? > > >> > > >> Thanks, > > > > > > ---------------------------------------------------------------------- > > > 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
