do any of you know how to make the last symbol in this formula, the one that looks like an I.
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do any of you know how to make the last symbol in this formula, the one that looks like an I.
$\mathcal{I}$– koleygr Dec 18 '22 at 19:56$\mathcal{I}$. Note that you can always use Detexify or the Comprehensive List to look up symbols ... – Jasper Habicht Dec 18 '22 at 19:58