if you use "/help ^" i think that shoudl bring you to "Halöting default text" but it doesn't. It brings up the site about Variables, which have nothing to do with the ^ prefix.
Try /help prefixes If you read the variable section of the help file you would see why that happened //echo 1 $calc(3.14159 * (2 ^ %x % 3) - ($ticks / (10000 + 1)))
If you open mirc, and press the find tab at the top, the help file will load, and simply typing ^ will find all intext-matches of where the ^ character was used in the help file.