Thank you for your answer!
The example is running perfectly, but the eigenvalues, the eigenvectors and
SVD are not.
I do not understand why?
load'math/lapack2'
load'math/lapack2/example/dgeev'
0.799482 _0.0994125j0.400792 _0.0994125j_0.400792 _0.100657
┌
For documentation, it looks like
https://code.jsoftware.com/wiki/Vocabulary/LAPACK
and maybe
https://code.jsoftware.com/wiki/Addons/math/lapack
should be decent.
As for the definitions themselves, it looks like
require'math/lapack2'
brings in all of the lapack2 the definitions, and that they
The reason it's hard to find anything else on modifier trains is that they
have been removed from the language a long time ago (with j501 in 2002,
apparently), and only reintroduced recently with j903.
Before the reintroduction, the only modifier trains were bidents:
- partially applied conjunctio
I noticed that dgeev returns real & imaginary parts of the complex
eigenvectors -- reasonable, but unexpected.
J9.04k Windows
load '~addons/math/lapack2/example/dgeev.ijs'
ev
0.799482 _0.0994125j0.400792 _0.0994125j_0.400792 _0.100657
vr
_0.655089 _0.193302 0.254632 0.125333
_0.523629 0.25185
All, but 1 or 2 of https://code.jsoftware.com/wiki/Vocabulary/ModifierTrains
are extremely useful. Their use is mainly in creating compound modifiers
(expressions that return modifiers) or quick modifiers.
The core "adverbial programming" in J has always been the much simpler adverb
sequence t
Present: Art Anger, Raul Miller, and Bob Therriault
1) Bob showed off the work that he has been doing in category trees
https://code.jsoftware.com/wiki/Page_Map and is in the process of categorizing
all the pages in the wiki. Originally, he was categorizing across a number of
subtrees until he
the verb dgeev_jlapack2_ calls the fortran subroutine
NB. subroutine dgeev ( character JOBVL,
NB.character JOBVR,
NB.integer N,
NB.double precision
