Περιοδική συνάρτηση
Tolaso
\begin{tikzpicture} \draw (-6.6,0) -- (7,0) node{$x$}; \foreach \x in {-1,1,2,3,4,5} \foreach \x/\xtext in { -2*pi/-2\pi,-1.5*pi/-\frac{3\pi}{2},-pi/-\pi, -0.5*pi/-\frac{\pi}{2} , 0.5*pi/\frac{\pi}{2} ,pi/\pi, 1.5*pi/\frac{3\pi}{2}, 2*pi/2\pi} \draw (0pt,2pt) -- (0pt,-2pt) node {$\xtext$}; \draw (0.,-1.3) --…