Re: Matrix native function

[Henrik Moller]

    Hey Jürgen,
      
      Great!  I'll take a look at the deltas, and tinker with the eigens
      testcases.
      
      (I wrote my first line of C about 40 years ago when K&R style
      was the only style, and that's baked into my brain and my
      .emacs file.  I tried to get more moderm with Quad_MX, but ancient
      habits are hard to patch around.)
      
      Henrik

On 11/29/24 08:34, Dr. Jürgen Sauermann wrote:

Hi Henrik,

thanks a lot for contributing ⎕MX. It is now included in SVN 1786.
I made a few changes to adapt it to the GNU APL coding style.
Please double-check if everything went OK.

I noticed a minor difference in the Quad_MX.tc testcase file on my machine,
probably caused by rounding errors if the eigenvalues were close to 0.
Maybe it makes sense to omit eigenvalues < ⎕CT and their eigenvectors?

Best Regards,
Jürgen Sauermann

On 11/16/24 21:51, Henrik Moller wrote:

Hi, Jürgen,

Attached is a tgz containing all the new files for the ⎕MX thing as well as an svn diff patch file for the changes to the existing files.  The format of the patch file created by svn diff seems to be a little different from the format created by a standard unified diff -- I had use

patch -p0 < Quad_MX.patch

to make it work.  If I left out the -p0, it complained.

Henrik