I would like to change one letter on small in my section
\documentclass[oneside,12pt,a4paper]{memoir}
\usepackage{polski}
\usepackage[utf8]{inputenc}
\usepackage[right=2.7cm,left=3.5cm, top=2.7cm, bottom=2.5cm,includehead]{geometry}
%section style
\renewcommand\section{\@startsection {section}{1}
{\z@}%
{-3.5ex \@plus -1ex \@minus -.2ex}%
{2.3ex \@plus.2ex}%
{\large\scshape}}%\bfseries}}
\renewcommand*{\thesection}{\arabic{chapter}.\arabic{section}}
\setsecnumformat{\csname the#1\endcsname .\hspace{2.5mm}}
\begin{document}
\section{n-regular polygons}
\end{document}
This should generate N-REGULAR POLYGONS but I need n-REGULAR POLYGONS
\spacefactor' in vertical mode.