1. দৃশ্যকল্প-১: $P=\left[\begin{array}{ccc}1+x^{2}-y^{2} & 2 x y & 2 y \\ 2 x y & 1-x^{2}+y^{2} & -2 x \\ -2 y & 2 x & 1-x^{2}-y^{2}\end{array}\right]$

দৃশ্যকল্প-২: $R=\left[r_{i j}\right]_{3 \times 3} S=\left[\begin{array}{lll}1 & 2 & 3 \\ 2 & 3 & .1 \\ 3 & 1 & 2\end{array}\right] ;$ যেখানে, $r_{i j}=i+2 j$