帮助制作特定片段

Question

我对 tikz 还很陌生，我不知道如何绘制这个：

u(x,t) 必须位于线段的中间并且每个其他点相距距离“h”，每个点的中间上方都有 1/2。

Answer 1

\documentclass{article}
\usepackage{tikz}
\begin{document}
    \begin{tikzpicture}
        \draw (-6,0) -- (6,0) ; %edit here for the axis
        \foreach \x/\y in  {-6/{$U(X-2h,f)$},-3/{$U(X-h,f)$},0/{$U(X,f)$},3/{$U(X+h,f)$},6/{$U(X+2h,f)$}} % edit here for the vertical lines
        \draw[shift={(\x,0)},color=black] (0pt,3pt) -- (0pt,-3pt)node[below] {\y};
        \foreach \x/\y in {-6/-3,-3/0,0/3,3/6}
        \draw[bend left,looseness=1.4, shorten >=4pt,shorten <=4pt, blue, thick](\x,0)to node[ label=90: 1/2]{}(\y,0);
    \end{tikzpicture}
\end{document}