Possible tutorial on Octave Symbolic

[jonbcooper]

I saw a comment asking if someone could start a tutorial so, as I have just started learning a bit of Octave, I have put together a quick tutorial: here. Feel free to use that, if it is of any interest.

[cbm755]

Very cool! Too bad about the square root rendering in one of the last examples :( Font trouble? It looks good on my computer.

Any idea where we should link this? Maybe from the wiki somewhere? Either the wiki.octave.org or the local one on this site...

[cbm755]

Ugh, its like that out of the box: top if the UI on Octave 11 on Fedora 42:

In black on the bottom is my terminal.

[cbm755]

Looks fine when I paste that char in manually:

[cbm755]

It is somehow related to the vertical bars at the ends, when those are present, it damages the horizontal piece:

[cbm755]

Screencast.From.2025-10-02.15-35-01.webm

[jonbcooper]

It works fine with many of the other fonts. I can make a better picture, or add a warning in the text to change font if something looks odd.

[jonbcooper]

It varies with the font size too. If you lower it, the horizontal bars can suddenly appear. Hack or dejavu sans mono seem the most reliable.

The bottom corners of the array brackets display correctly, too.

[cbm755]

I didn't find an upstream bug report. https://savannah.gnu.org/bugs/?group=octave

You could file one? If you do link it here. Otherwise, I will try to... eventually!

[jonbcooper]

I added a couple of better figures along with one or two new things and the bug has been reported.

[dasergatskov]

I am not sure what would be the octave bug? That it uses a really bad default font for gui?

[jgardona]

Would be nice to have differential equations also.