\setupbodyfont[lucidaot]

% \enabletrackers[math.alternates]

\starttext

\startlines
    $abc\mathalternate{italic}abc$
    $𝒜ℬ\mathalternate{calligraphic}𝒜ℬ$
    $∅\mathalternate{zero}∅$
    $⇑\mathalternate{arrow}⇑$
    $Σ\mathalternate{operator}Σ$
    $∂\mathalternate{partial}∂$
\stoplines

\stoptext
