@lizardsquid what is that first symbol, I don't recognise it
@Felthry square root
@lizardsquid no, there's one before the square root
@Felthry I must have put that in accidentally - it doesn't even show up on my screen
@lizardsquid that is several kinds of weird!
@salameleon @lizardsquid it is quite clearly U+2340 : APL FUNCTIONAL SYMBOL BACKSLASH BAR though
if it was just mojibake I don't think http://www.babelstone.co.uk/Unicode/whatisit.html would say it is what it looks like