\varphi and \phi are switched

[Vahieltje]

In the code editor, \varphi gives ϕ and \phi gives φ. In LaTeX however, it is the opposite, eg. \phi gives ϕ and \varphi gives φ. This can be kind of annoying when plotting, since the phi symbol in the code and the plot are different.

I would suggest switching \varphi to give φ in the editor and \phi to give ϕ, to be consistent with LaTeX notation.

[mxwell-dev]

Cannot confirm. Even though (strangely enough), it looks wrong when browsing the sourcecode on github, the actual unicode characters are correct (cf. by pasting them e.g. here). \varphi produces "U+03C6 | GREEK SMALL LETTER PHI", whereas \phi produces "U+03D5 | GREEK PHI SYMBOL". Also in vscode it displays correctly. Perhaps your font got things mixed up (like it appears to be in github).