隐藏树的第一个节点，或创建具有 2 个起始节点的树

Question

我有以下代码，

\[\begin{tikzpicture}[level distance=50mm,sibling distance=22mm,every node/.style={rectangle,draw,inner sep=4pt}]
    \node {}
    child [draw=none,grow=left]{
        child{node{$\frac{4}{3}(1.571583165)-\frac{1}{3}(1.859140914)=1.475730582$}edge from parent[draw=none]
            child{node{$1.859140914$}}
            child{node{$1.571583165$}}
        }
        child{node{$\frac{4}{3}(1.490678862)-\frac{1}{3}(1.571583165)=1.463710761$}edge from parent[draw=none] 
            child{node{$1.571583165$}}
            child{node{$1.490678862$}}
        }};
    \end{tikzpicture}\]

其结果如下：

我想隐藏第一个节点，或者如果有一种方法可以启动一个有 2 个节点的树也不错，有什么想法吗？谢谢。

Answer 1

\documentclass[border=10pt]{standalone}
\usepackage{tikz}
\begin{document}

\begin{tikzpicture}[level distance=50mm,sibling distance=22mm,every node/.style={rectangle,draw,inner sep=4pt}]
  \node [draw=none] {}
  child [draw=none,grow=left]{
    child{node{$\frac{4}{3}(1.571583165)-\frac{1}{3}(1.859140914)=1.475730582$}edge from parent[draw=none]
      child{node{$1.859140914$}}
      child{node{$1.571583165$}}
    }
    child{node{$\frac{4}{3}(1.490678862)-\frac{1}{3}(1.571583165)=1.463710761$}edge from parent[draw=none]
      child{node{$1.571583165$}}
      child{node{$1.490678862$}}
    }edge from parent[draw=none]};
\end{tikzpicture}
\end{document}