I need to reduce the space before and after the sum in an equation to be placed within a text. This is the equation
\documentclass[12pt]{article} \begin{document} texte.....$\alpha = \displaystyle\sum_{j=UCL+1}^{n}BIN(j, n, p_0)$....texte \end{document}
I used \! to reduce space but I didn't get good results.