I've made a change to LaTeX editing on mathstodon.xyz: unicode equivalents outside maths delimeters are no longer automatically inserted. Instead, when you select a LaTeX autocompletion, if it can be rendered using just unicode, that's inserted instead of the LaTeX code.
𝑓 : 𝑋→𝑌 = sin(θ²)
was produced by writing
\( f: X \to Y = \sin(\theta^2)
and pressing enter.
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