@jetton That'ſ quite entertaining; though their love of uſing the 𝑓lamboyant ſ abſolutely doeſ my head in. They could atte lea∫t have employed the even more outrageou∫ one now u∫ed in integral∫ a∫ itte *look∫* a bit like an ∫. I mean s. And not an f (or ƒ or 𝑓... whatevſ).
@vometia
The italic form, such as the first sentence, does look like the integral sign.
Not surprising, for the integral sign is an s. Short for summation, or whatever is the latin equivalent.
Unless I'm wrong.