Libertinus, widetilde and amssymb

I am having trouble with typsetting \widetilde using libertinus when using amssymb. The code compiles when amssymb is not used, but produces a g looking tilde (not wide). There is no difference in the widetilde or tilde Though this question suggests that it has been resolved with the update, I could not get the same results. I am on TL2020 and using XeLaTeX to compile. When amssymb is used instead of the small tilde, something else appears.

\documentclass{article}

\usepackage{libertinus}

% these are repeated symbols hence the relax
\let\eth\relax
\let\digamma\relax
\let\backepsilon\relax

\usepackage{amssymb}

\begin{document}
The operator $\widetilde{\hat{L}}$ is said to be the \emph{transpose} of the operator
$\hat{L}$ if the following condition is satisfied:

$\widetilde{\hat{L}}$ widetilde

$\tilde{\hat{L}}$ tilde

\end{document}


You don't want to load amssymb, actually. If you load it after libertinus the output is wrong, if you load it earlier, then amssymb does actually nothing at all.

The fact is that libertinus loads unicode-math with the Libertinus Math font.

If you don't like the output of the wide tilde, which is actually incorrect, use newtxmath with the libertine option and pass libertinus the nomath option.

I also increased the baselineskip so the double accent doesn't clash with the previous line, but you should be aware that double accents are dangerous under this respect.

\documentclass{article}

\usepackage{amsmath}
\usepackage[libertine]{newtxmath}
\usepackage[nomath]{libertinus}

\begin{document}
The operator $\widetilde{\hat{L}}$ is said to be the \emph{transpose} of the operator
$\hat{L}$ if the following condition is satisfied:

$\widetilde{\hat{L}}$ widetilde

$\tilde{\hat{L}}$ tilde

\end{document}


This is the output with just \usepackage{libertinus}

• I had included in the MWE. amssymb as removing it seemed to solve the problem (at least no weird symbol). Is amssymb a deprecated pacakge now - I cannot seem to find anything on CTAN. Does amsmath need to be loaded before the font packages? The actual document has wider linespacing, since this was MWE I did not include it. – Damitr Apr 16 at 17:23