% Author: Dr. Matthias Jung, DL9MJ
% Year: 2020
\begin{tikzpicture}
    \pgfplotsset{
        every axis plot/.append style={line width=0.8pt},
    }
    \begin{axis}[%
        /pgf/number format/1000 sep={ },
        /pgf/number format/use comma,        
        axis lines=middle,
        axis line style={-Triangle},
        ytick={-1,0,1},
        every major tick/.append style={thick, black},
        yticklabels={-A,0,+A},
        xtick={pi/2,pi,1.5*pi,2*pi,2.5*pi},
        xticklabels={$\mathrm{X}_1$,$\mathrm{X}_2$,$\mathrm{X}_3$,$~~\mathrm{X}_4$,$\mathrm{X}_5$},
        grid=major,
        grid style={line width=.1pt, draw=gray!10},
        major grid style={line width=.2pt,draw=gray!50},
        xmin=0,
        xmax=2.75*pi,
        ymin=-1.5,
        ymax=1.5,
        xmajorgrids=false,
        %tick label style={font=\footnotesize}
        xlabel style={at={(ticklabel* cs:1)},anchor=north east},
        ylabel style={at={(ticklabel* cs:1)},anchor=south east},
        ylabel={$U$},
        xlabel={$t$},
        width=\linewidth*\getDarcImageFactor,
        height=4cm,
        scale only axis,
    ]
    \addplot[samples=500,domain=0:2.5*pi,smooth,black] {sin(deg(x))}; 
    \draw (axis cs: 0,0) node[anchor=north west]{0};
\end{axis}
\end{tikzpicture}%