The math/lapack addon was no longer supported on current J. Instead, lapack is provided by math/lapack2. The windows binaries from it has optimized blas, should be order of magnitude faster than that in the older lapack addon. However, usage of these 2 addons are different. You need to study various scripts under the test folder. The dgeev.ijs should be the script you need.
FYI the left argument of dyad verb tdgeev there is the parameter for data type/precision. 0 1 2 3 for double complex single-precision float and single-precision complex. On Tue, Feb 14, 2023 at 10:06 PM Erik Papp <erikmail...@gmail.com> wrote: > Dear J Jusers, > > Earlier I used *LAPACK* in the *J602a* and *J804* versions without any > problems. > > I installed the *J903* version along with *LAPACK* based on > > *System/Installation/J903/AIO*. I repeated the installation several > times, but it does not run, > > it *always gives an error*. > > I tried running the *Addons/math/lapack* example, but I kept getting > an error message. > > After > > load 'math/lapack math/lapack/dgeev' > > not found: c:/users/tulajdonos/j903/addons/math/lapack/lapack.ijs > > |file name error: script > > | 0!:0 y[4!:55<'y' > > I getting error message. > > It was the same problem after > > load 'math/lapack2 math/lapack2/dgeev' > > not found: c:/users/tulajdonos/j903/addons/math/lapack2/dgeev.ijs > > |file name error: script > > | 0!:0 y[4!:55<'y' > > > Has anyone had a similar experience? > > How to install LAPACK on J903? > > Thank you in advance for your kind help. > > Sincerely, Erik > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
