答案1
使用图片绘制Parabola Operation
\documentclass[border=3.14]{standalone}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}
\fill [red!30,rotate=-90]
(0,0) parabola[parabola height=2cm] ++(2,0)
-- ++(0.3,0.2)
parabola[parabola height=2cm] ++(-2.6,0)
-- cycle;
\draw [rotate=-90]
(0,0) parabola[parabola height=2cm] ++(2,0)
++(0.3,0.2) parabola[parabola height=2cm] ++(-2.6,0);
\fill [blue!30,rotate=-90]
(-0.3,0.2) parabola[parabola height=2cm] ++(2.6,0)
-- ++(0.4,0.2)
parabola[parabola height=2.05cm] ++(-3.4,0)
-- cycle;
\draw [rotate=-90]
(-0.3,0.2) parabola[parabola height=2cm] ++(2.6,0) ++(0.4,0.2)
parabola[parabola height=2.05cm] ++(-3.4,0);
\end{tikzpicture}
\end{document}