برای رسم این تصویر میتوانید از بسته tikz استفاده کنید:
\documentclass{article}
\usepackage{tikz}
\usepackage{xepersian}
\settextfont{XB Yas}
\begin{document}
\begin{tikzpicture}
\node at (0,0){\Large$\begin{array}{*{20}{c}}\vspace{0.3cm}
1& = & B_{0}^{^{0}}& B_{0}^{^{1}}& B_{0}^{^{2}}& \cdots & B_{0}^{^{n}}\\\vspace{0.3cm}
{}&{}&{}& B_{1}^{^{0}}& B_{1}^{^{2}}& \cdots & B_{1}^{^{n}}\\\vspace{0.3cm}
{}&{}&{}&{}& B_{2}^{^{2}}& \cdots & B_{2}^{^{n}}\\\vspace{0.3cm}
{}&{}&{}&{}&{}& \ddots & \vdots \\\vspace{0.3cm}
{}&{}&{}&{}&{}&{}& B_{n}^{^{n}}
\end{array}$};
\draw[very thick,->](5,1)--(6.5,-.25){};
\draw[very thick,->](5,-0.5)--(6.5,-.5){};
\node at(5.75,0.65) {\Large $u$};
\node at(4.75,1.05) {\LARGE $*$};
\node at(4.75,-0.5) {\LARGE $*$};
\node at(6.75,-.5){\LARGE $*$};
\node at(5.75,-0.8) {\Large $1-u$};
\node at(4.75,1.5) {\bf کلید};
\end{tikzpicture}
\end{document}