What ⋇ means
It has no one fixed arithmetic meaning. Unicode describes ⋇ as an ambiguous sign conflating multiplication and division. One possible reading is a multiplicative counterpart to ±: a choice between multiplying and dividing. A text may also define ⋇ as its own binary operation, a rule combining two inputs. The local definition decides which reading applies.
The related signs have separate histories: mathematician William Oughtred used × in a mathematics book published in 1631; Johann Rahn used ÷ for division in a 1659 algebra book; and mathematician Gottfried Leibniz advocated a dot for multiplication in a letter dated 1698. Those dates belong to those notations, not to ⋇.
Specialist mathematical notation; its operation depends on the definition in the text.
Define ⋇ before using it; readers cannot infer the operation.
Don't confuse it with
1Questions people ask
1Why does ⋇ look different in different fonts?
It can. Font designs make the overlapping strokes in ⋇ more or less distinct; use the surrounding definition to tell which operation is intended.
How to type ⋇
⋇\22C7Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.
