I've found http://en.wikipedia.org/wiki/Table_of_mathematical_symbols http://en.wikipedia.org/wiki/Table_of_mathematical_symbols to be helpful when deciphering

I've found http://en.wikipedia.org/wiki/Table_of_mathematical_symbols http://en.wikipedia.org/wiki/Table_of_mathematical_symbols to be helpful when deciphering formulas. It's hard to remember what all the notation means sometimes.