I'm having some trouble when trying to correctly display a summation using LaTeX.
I'm using the package mathtools
, and the formula:
Cov(O) = \frac{ \sum_{\forall c_i \in C} exists(O, c_i)}{n}
My problem is the \forall c_i \in C
text appears as a sub index of the \sum
element instead of appearing below it.
Best Answer
This is standard because the arguments of
\frac
are in textmode math. Try\frac{\displaystyle ...
or\frac{\sum\limits_{....
BTW: One usually never write
\forall
in the limits of the sum, one would usually just write\sum_{c_i \in C}
, the for all is implied