希臘字母和 tikz

希臘字母和 tikz

我必須插入希臘字母來代替 V_0 和 C_t,但似乎沒有任何效果。有什麼提示嗎?

\documentclass[11pt,a4paper]{article}

\usepackage{tikz}

% tikzstyle è deprecato: 
% http://tex.stackexchange.com/q/52372/13304
\tikzset{bag/.style={text width=2em, text centered}}% align=center

\begin{document}

\begin{tikzpicture}
\draw[|-stealth] (0,0) -- (8,0) node[right]{$t$};

\foreach \x/\testosopra/\testosotto in {0/V_0/{0},7/C_t/t}{
 \draw(\x,0.1)--(\x,-0.1);
 \node[above,font=\scriptsize]at (\x,0.1) (\testosopra) {$\testosopra$};
 \node[below,font=\scriptsize]at (\x,-0.1) {$\testosotto$};
}


\end{tikzpicture}

\end{document}

答案1

問題出(\testosopra)\draw宏觀。我認為(不知道tikz)這是一個節點的內部標籤,結論是內部標籤不能是希臘宏。在這裡,我替換(\x)(\testosopra),因為允許使用“0”和“7”等內部標籤。

這樣做,我沒有問題然後V_0\alphaC_t替換\beta

\documentclass[11pt,a4paper]{article}

\usepackage{tikz}

% tikzstyle è deprecato: 
% http://tex.stackexchange.com/q/52372/13304
\tikzset{bag/.style={text width=2em, text centered}}% align=center

\begin{document}

\begin{tikzpicture}
\draw[|-stealth] (0,0) -- (8,0) node[right]{$t$};

\foreach \x/\testosopra/\testosotto in {0/\alpha/{0},7/\beta/t}{
 \draw(\x,0.1)--(\x,-0.1);
 \node[above,font=\scriptsize]at (\x,0.1) (\x) {$\testosopra$};
 \node[below,font=\scriptsize]at (\x,-0.1) {$\testosotto$};
}


\end{tikzpicture}

\end{document}

在此輸入影像描述

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