I have often seen, that users of this forum use "$.$" (full-stop) as a multiplication sign, e.g. $4.5=20$
I have thought, that this notation is the american style. But a user of this forum told me that this is not the case. Therefore my question is, in which country or context is this kind of notation used ?
Remark: I´m only interested in notation for multiplication of numbers. I´m not interested in, e.g., the notation for multiplication of two vectors. I´m familiar with "$\cdot$" and "$\times$" for muliplication signs.
Thanks for any answer.
I'm not aware of this being a common notation anywhere, especially since it can be confused with a decimal point. I think some people use it because they aren't aware that the \cdot macro exists.