答案1
这并不是尝试重新创建完整的屏幕截图,而是为了给您提供如何绘制此类曲线的示例。
\documentclass[tikz,border=3mm]{standalone}
\begin{document}
\begin{tikzpicture}[pics/cline/.style={code={
\foreach \X/\Y [count=\Z] in {#1}
{\draw ({\X},-0.1) -- ({\X},0.1)
node[text depth=0.25ex,above] (-n-\Z){$\Y$};
\ifnum\Z=1
\path ({\X},0) coordinate[alias=aux-first] (-p-1);
\else
\path ({\X},0) coordinate[alias=aux-last] (-p-\Z);
\fi}
\draw[shorten <=-1mm,shorten >=-1mm] (aux-first) -- (aux-last);
}}]
\path pic[xscale=3] (A) {cline={-1/-\omega,0/0,0.5/{\omega/2},1/\omega,2/{2\omega},%
{sqrt(7)}/\sqrt{7},3/{3\omega}}}
(0,-2)pic[cyan] (B) {cline={-4/-4,-3/-3,-2/-2,-1/-1,0/0,1/1,2/2,3/3}};
\draw[cyan] (B-n-2.north west) to[bend right=15] ([yshift=-1mm]A-p-2)
(B-n-8.north east) to[bend left=15] ([yshift=-1mm]A-p-2);
\end{tikzpicture}
\end{document}