Neither can I, and I'm getting fed up of wasting half an hour, because the mathematician that wrote the book I'm reading decided to replace something very simple, with an obscure symbol in order to show off his math penis. It doesn't help that they all use different symbols for the same fucking thing either.
CUNTS
The worst bit is, trying to do a google search for a mathematical symbol is a total cunt, because you can't exactly google for "wee squiggly line with a dot and a triangle with a little eye in it and a little box around it maths maths maths". If you're lucky you can find it by doing a search for "mathematical symbol" on wikipaedia or mathworld.
Apparently this
which would be what any sensible person would write, was too simple for the cuntsprocket that wrote the book I was reading to write, so he had to write this
ARGHHHHHHHH