30th-siicusp

A short lecture of mine on my scientific initiation project for 30th SIICUSP

dihedral-representation.tikz (523B)

 1 % This picture represents the action of the dihedral group in the real plain
 2 % Copyright Pablo (C) 2021
 3 \begin{tikzpicture}[scale=.5]
 4   % The axis
 5   \draw[->] (-3,0)--(3,0) node[right]{$x$};
 6   \draw[->] (0,-2)--(0,2) node[above]{$y$};
 7 
 8   % The triangle
 9   \node[draw, regular polygon, regular polygon sides=3, minimum height=1cm]{};
10 
11   % The action of sigma
12   \draw[->] (1.5, 0.5) arc (0:90:1cm) node at (1.5, 1.4) {$\sigma$};
13 
14   % The action of tau
15   \draw[<->] (-1, -1)--(1, -1) node[right]{$\tau$};
16 \end{tikzpicture}   
17