如何在乳胶中制作上下箭头

Question

如何在乳胶中制作下面的箭头

建议的重复是一棵垂直树，我不需要它，我只需要一个水平的两个箭头

Answer 1

您可以将此作为起点。

arrows.meta根据需要调整文本大小和类型。例如，查看以下文章，了解不同的箭头这个问题。

这是代码。

\documentclass{article}

\usepackage{tikz}
\usetikzlibrary{arrows.meta}

\begin{document}
\[
\begin{tikzpicture}
    \draw[{Latex[length=2mm,width=2mm]}-{Latex[length=2mm,width=2mm]}]
    (5,.75)node[right]{\Large\textsf{K-means}}
    -- (0,0)node[left]{\Large\textsf{\begin{tabular}{c}Squared-\\error\end{tabular}}} 
    -- (5,-.75)node[right]{\Large\textsf{\begin{tabular}{c}Kernel\\K-means\end{tabular}}};
\end{tikzpicture}
\]
\end{document}

Answer 2

如果您想通过箭头连接文本的某些元素，您可能需要这样做。

\documentclass{article}
\usepackage{tikz}
\newcommand{\tikznode}[2]{%
\ifmmode%
\tikz[remember picture,baseline=(#1.base),inner sep=0pt] \node (#1) {$#2$};%
\else
\tikz[remember picture,baseline=(#1.base),inner sep=0pt] \node (#1) {#2};%
\fi}%from https://tex.stackexchange.com/questions/402462/tikz-equivalent-of-pstricks-commands-ncbar-and-rnode/402466#402466
\begin{document}
\begin{flushright}
\tikznode{km}{K--means} 
\end{flushright}
\tikznode{se}{\begin{tabular}{c}
squared\\ error
\end{tabular}}
\begin{flushright}
\tikznode{ke}{\begin{tabular}{c}
Kernel\\ K--means
\end{tabular}} 
\end{flushright}
\tikz[overlay,remember picture]{\draw[->] (se.east)--(km.west);
\draw[->] (se.east)--(ke.west);}
\end{document}

Answer 3

纯tikz解决方案。使用positioning库来定位节点：

\documentclass[tikz, margin=3mm]{standalone}% very suitable for test of image drawings
\usetikzlibrary{arrows.meta, positioning}

\begin{document}
    \begin{tikzpicture}[
node distance = 0mm and 22mm, % vertical and horizontal distances between nodes
mynode/.style = {align=center, font=\sffamily}
                    ]
% nodes
\node (n1)  [mynode]                    {Squared-\\error};
\node (n21) [mynode,above right=of n1]  {K-means};
\node (n22) [mynode,below right=of n1]  {Kernel\\ K-means};
% arrow
\draw[Triangle-Triangle] (n21.west) -- (n1.east) -- (n22.west);
    \end{tikzpicture}
\end{document}