remove sections numbering

Question

I have the next code:

\documentclass[a4paper,openright, 12pt]{article}
\usepackage[utf8]{inputenc}

\usepackage{fullpage}
\newcommand{\ssection}[1]{%
\section[#1]{\centering\normalfont\scshape #1}}
\newcommand{\ssubsection}[1]{%
\subsection[#1]{\bfseries\normalfont\scshape #1}}
\newcommand{\ssubsubsection}[1]{%
\ssubsubsection[#1]{\bfseries\normalfont\scshape #1}}

\begin{document}
\ssection{Special relativity}
  bla bla bla
\ssubsection{Lorentz's transformation}
  bla bla bla
\ssubsection{Minkowski space-time}
  bla bla bla
 \end{document}

anyone know how to remove the sections numbering?

And if I use:

\documentclass[a4paper,openright, 16pt]{article}

Why the letters are not bigger?

Answer 1

Add \setcounter{secnumdepth}{0} to preamble.

Answer 2

• To center the sections, you could for example use the sectsty package
• One way to remove the numbers from the sections is to use unnumbered sections denoted by the stars.

---

\documentclass[a4paper,openright, 12pt]{article}
\usepackage{sectsty}

\allsectionsfont{\centering}

\begin{document}

    \section*{Special relativity}
    bla bla bla
    \subsection*{Lorentz's transformation}
    bla bla bla
    \subsection*{Minkowski space-time}
    bla bla bla

\end{document}

Answer 3

To remove section numbering but keep references to the section you can add this to your preamble:

\makeatletter
\renewcommand{\@seccntformat}[1]{}
\makeatother

Answer 4

If you want to remove the numbering from the sections and not from the table of contensts try this :

\usepackage{titlesec}
\titleformat{\section}{\normalfont\Large\bfseries}{}{0pt}{}