I am using textsc in section by manually adjusting fontsize between normal size and script size. For example:
\section{P\scriptsize ROGRAMMING \normalsize P\scriptsize ROGRAMMING}
should produce:
The first letter P appears to be larger than the second letter P, obviously since normalsize has a fontsize less than fontsize of section
My question is how can I make the second letter P match the size of the first letter P. I don't want to add another normalsize for the first letter P.
If you need to render all section-level headers in bold small-caps, I strongly recommend you tell LaTeX about this, so that LaTeX will do the tedious work for you. E.g., you could load the sectsty package and issue a suitable \sectionfont directive.
\documentclass{article} % or some other suitable document class
\usepackage[T1]{fontenc} %to enable bold small-caps letters
\usepackage{sectsty}
\sectionfont{\scshape} % render section-level headers in bold small-caps
\begin{document}
\stepcounter{section}
\section{Programming Programming}
\end{document}
titlesec.\section{P{\scriptsize ROGRAMMING} P{\scriptsize ROGRAMMING}}. The effect of\scriptsizelasts only until the closing brace.\textscYou should never have fontsize commands in the section argument, the sizes are set by the document class, and are different in the heading, in the table of contents and in page heads.