arXiv is now testing a new display of papers in html format to increase accessibility [for those with no pdf reader?] Hopefully, this will not induce further constraints on the LaTeX format of arXiv submissions, at a time when it got easier for off-the-shelf files to be immediately accepted, but the fact that the site encourages using Overleaf is not that promising… (The plea that readers do not create reports that the HTML paper doesn’t look exactly like the PDF paper is hilarious, as I presume many complained of exactly this drawback.)


![When trying rather sterilely [since the whole idea is that the posterior to the first sample is the prior to the second sample!] to demonstrate the update formula for the Normal-Gamma conjugate model, following a question on X validated, I found the MathJax editor more annoying than usual as lacking the ability to visualise the output while typing the LaTeX input. And went for the first time to PLMlatex, the local version of Overleaf, to compose my answer..](https://i0.wp.com/xianblog.fr/wp-content/uploads/2021/03/temp-3.png?resize=450%2C579&ssl=1)