Zdroj TeX:

\\ \; \\ \left( \begin{array}{} x_1 \\ x_2 \\ \;· \\ x_n \\ \end{array} \right) =\left( \begin{array}{} a_{1} \\ a_{2} \\ \;· \\ a_{n} \end{array} \right) +\left( \begin{array}{} a_{12} & a_{12} & ··· & a_{1k} \\ a_{22} & a_{22} & ··· & a_{2k} \\ \; ··· & \\ a_{n2} & a_{n2} & ··· & a_{nk} \end{array} \right) · \left( \begin{array}{} t_1 \\ t_2 \\ \;· \\ t_k \\ \end{array} \right)\\ \; \\