使用 tkz-fct 绘制此函数

Question

我正在学习使用tkz-fct并想绘制此函数。有人能给我一个想法吗？

Answer 1

pgfplots如果您对而不是感到满意tkz-fct，那么这将是一个起点：

\documentclass[border=5mm]{standalone}

\usepackage{pgfplots}

\begin{document}
    \begin{tikzpicture}
    \begin{axis}[
    samples=100,
    ticks=none,
    xmin = 0, xmax = 2,
    ymin = 0, ymax = 4,
    domain=0:1.6,
    axis x line=bottom,
    axis y line=left,
    xlabel={$x$},
    ylabel={$y$},
    every axis x label/.style={
        at={(axis cs:2,0)},
        anchor=north,
    },
    every axis y label/.style={
        at={(axis cs:0,4)},
        anchor=east
    },
    legend style={
        at={(axis cs:-5.2,4)},
        anchor=west, font=\scriptsize
    },
    declare function={f(\x)=(\x)^2;},
    ] 
    \addplot[mark=none] {f(x)};
    
    \draw (axis cs:0,{f(1.5)})coordinate(B) -- (axis cs:1.5,{f(1.5)}) -- (axis cs:1.5,0)coordinate(C);
    \draw (axis cs:1.2,{f(1.2)}) -- (axis cs:1.2,0)coordinate(A)node[near end,left]{$S_1$};
    
    \node[above] at (axis cs:1.6,{f(1.6)}) {$y=x^{p-1}$};
    
    \node at (axis cs:0.7,1.6) {$S_2$};
    
    \end{axis}
    \node[anchor=north] at (A) {$A$};
    \node[anchor=east] at (B) {$B$};
    \node[anchor=north] at (C) {$C$};
    \end{tikzpicture}
\end{document}