all Fortran functions are called by reference and passed as array from J. there is a file dpotrf.ijs in the test folder of the addon.
On Wed, Jan 27, 2021, 9:46 PM 'Jon Hough' via Programming < [email protected]> wrote: > Hi, > > I am looking through the new Lapack library (Lapack2) > https://code.jsoftware.com/wiki/Vocabulary/LAPACK > > I followed the example on that page and it worked fine (QR factorization). > > Now I want to use Cholesky Decomposition ( > http://www.netlib.org/lapack/explore-html/d6/daf/a18565_ga2f55f604a6003d03b5cd4a0adcfb74d6.html > ) > > The signature of which is > NB. dpotrf n *c *i *d *i *i > > > > M=: 3 3 $ 2 _1 0 _1 2 _1 0 _1 2 NB. 3x3 ppositive-definite matrix > dpotrf_jlapack2_'U';3;(M);3;_1 > > This give s domain error > |domain error: cd > > Any help appreciated on using this lapack function. > > Regards, > Jon > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
