the temporary solution to the problem has been found to be changing the wikitext to

;Analisi dell'errore
<math display="block">E_k = x_k-1/a</math><math display="block">E_{k+1} = |x_{k+1}-\alpha| = f(x_k)-\alpha = (1-a)x_k+1-1/a</math><math display="block">= x_k-1/a-a x_k+1 = E_kk-a(x_k-1/a) = (1-a) E_k</math>e se <math>|1-a| <1</math> l'errore si riduce.

Now the macros without parameters are considered differently by the preparser. They are simply replaced.

We have to check the list of supported languages by OCG.

I had a typo in the config file. Please check that you have:

Solved (see the pull request)!

PR Accepted! Please mark this ticket as resolved.

Exactly! Please create a PR

Shouldn't removing all the new-line characters from within the math tags be enough?

Still the same error message

What's the error?

It doesn't seem to work

It's my fault. Now also the plugins get some configuration from configs.yaml. I have to update the README.
Add:

Hi @subhankarshah ! Are you willing to work on the task?

I'll start only implementing the bold and italics, and leaving the plain text in the other cases.

Ok, let's define which text formatting rules are used by visualeditor:

Configuration added in configs.yaml. N° of thread configurable