The only difference is the use of comma to mark the decimal units position
How can you say that when, for example, the two posts above yours mention the division symbol.
Maths is not a universal language... as frd points out:
some scientists have their own ways of doing things and in Poland they can decrease your marks in your tests if you use idiocrasies and semantics of their rivals.
The whole reason we are discussing this is:
I didn't realise that these symbols would be different so had quite a struggle in our first lesson!
For someone proficient in maths the differences are not a problem. For learners, small differences draw things to a fullstop.