سلام
دو نمودار رو رسم کردم بصورت زیر:
\documentclass[12pt,a4paper]{report}
\usepackage{tikz,amsmath,color}
\tikzstyle{vertex}=[circle, draw, inner sep=0pt, minimum size=5pt]
\newcommand{\vertex}{\node[vertex]}
\begin{document}
\[
\begin{tikzpicture}
\draw (0,0) -- (1,3) -- (3,4) -- (6,2);
\draw (0,0)..controls(2.2,3.5) ..(6,2);
\draw [dashed,green] (0,0)..controls(2.1,3.6) ..(6,2);
\draw [dotted,red](0,0)..controls(2.2,3.2) ..(6,2);
\end{tikzpicture}
\]
\vspace{1cm}
\[
\begin{tikzpicture}[scale=1,thick]
\vertex (a) at (0,0) [label=above left:$b_{0}$] {};
\vertex (b) at (1,2) [label=above left:$b_{1}$] {};
\vertex (c) at (4,2) [label=above right:$b_{2}$] {};
\vertex (d) at (5,.7) [label=above right:$b_{3}$] {};
\path
(a) edge (b)
(b) edge (c)
(c) edge (d);
\draw [very thick](0.02,0.05)..controls(1.2,1.9)and (3.5,1.9) ..(4.95,.75);
\draw [->,>=stealth](2,-.2)--(5.7,-.2)node[above] {$t$};
\draw (2.5,-.3)--(2.5,-.1)node[above] {$0$};
\draw (2.5,-.3) node[below] {$a$};
\draw (5,-.3)--(5,-.1)node[above] {$1$};
\draw (5,-.3) node[below] {$b$};
\draw (5.65,-.3) node[below] {$u$};
\end{tikzpicture}
\]
\end{document}
خروجی:
توجه: به پرسشهای زیر مراجعه کنی خوبه میتونی اون یکی هم خودت رسم کنی. موفق باشید
http://qa.parsilatex.com/7159/
http://qa.parsilatex.com/7189/
http://qa.parsilatex.com/9668/
http://qa.parsilatex.com/9828/
http://qa.parsilatex.com/9733