Your call, of course, but something like ⎕MX[f] might be useful. The
functions I've included in mtx are ones I've found useful for doing 3D
modelling, animation, and similar things, but there are lots of others
that might be worth considering and that could be added as necessary, a
kind of ⎕FIO collection.
Looking at your configure.ac, you don't seem to be relying on any
external libraries, but mtx links the GNU gsl package and linking the
lapack library might be an option. Would this be a problem?
If you like, I'll port mtx as a ⎕MX extension and send you a patch.
Henrik
On 11/2/24 08:14, Dr. Jürgen Sauermann wrote:
Hi Hendrik,
I am wondering if it may make sense to make those functions built-ins?
As of today only QR-factorization is built-in but I always felt that that
may be too little (at least if compared to packages like e.g. LApack),
with f being a function selector or a function name like in ⎕FX and ⎕CR.
Best Regards,
Jürgen
All these functions could be accessed as either ⌹[f]B or as A[f]B
On 10/30/24 15:58, Henrik Moller wrote:
Earlier this year, I put a native function package, catted "mtx," on
GitHub. I've no idea if anyone is using it, but I just put up a new
release. The biggest change is that the new version uses the GNU gsl
library rather than an ad-hoc eigensystems package I used in the
first release, so the new version is easier to install.
A new feature is some massaging of the covariance and eigensystems
code to allow principal component analysis of statistical data*--see
the README for an example. That's in addition to the existing
capabilities:
* Matrix determinants
* Matrix eigenvalues and eigenvectors
* Identity matrices
* Vector cross products
* Vector interior angles
* Vector or scalar rotation matrices
* Gaussian complex random values
* Vector/matrix normalisation
* Homogeneous matrices
* Covariance
Anyway, it's at github.com/ChrisMoller/mtx
* One of my sons is a medical physicist and one the newer things in
that is using PCA to use sampled radiomic data to model the shapes of
cancerous regions. He asked me for the capability, but I have no
idea how useful it will be for anyone else.
