Math & Science ⇒ My Sigma is Ugly!

[Makaremi]

Hi,
I have the following equation in my report, but I have a problem with it. Sima is so small comparing to the other letters in the equation. I also need its subscript and superscript to appear on the bottom and top of Sigma, respectively.
I tried to google similar cases, but I couldn't find anything.
Would you tell me what I could do with it, or this is how it's supposed to be?
Thank you

Code: Select all

\begin{equation}
S = \exp\left(-\Sigma_{n=0}^{16} \left|{\frac{B^g_n-B^f_n}{B^f_n}}
\right|\right)
\end{equation}

[frabjous]

Sigma looks normal sized there, but I think perhaps you don't mean sigma, but rather the large operator \sum used for bounded sums. Using that will also put the scripts in the proper places.

Code: Select all

\begin{equation}
S = \exp\left(-\sum_{n=0}^{16} \left|{\frac{B^g_n-B^f_n}{B^f_n}}
\right|\right)
\end{equation}

[Makaremi]

You are right. Why did I use Sigma?!!!! I should have used \sum. My bad.
Thank you.