Alternative Equation Formats

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MathML

[\begin{matrix} σ_{1}^{2} & σ_{1} σ_{2} ρ_{1} & σ_{1} σ_{3} ρ_{1} ρ_{2} \\ σ_{2} σ_{1} ρ_{1} & σ_{2}^{2} & σ_{2} σ_{3} ρ_{2} \\ σ_{3} σ_{1} ρ_{2} ρ_{1} & σ_{3} σ_{2} ρ_{2} & σ_{3}^{2} \end{matrix}]

MathML rendered with MathJax

[\begin{matrix} σ_{1}^{2} & σ_{1} σ_{2} ρ_{1} & σ_{1} σ_{3} ρ_{1} ρ_{2} \\ σ_{2} σ_{1} ρ_{1} & σ_{2}^{2} & σ_{2} σ_{3} ρ_{2} \\ σ_{3} σ_{1} ρ_{2} ρ_{1} & σ_{3} σ_{2} ρ_{2} & σ_{3}^{2} \end{matrix}]

Math as LaTeX Source

$ \begin{bmatrix} \sigma ^2_1 & \sigma _1 \sigma _2 \rho _1 & \sigma _1 \sigma _3 \rho _1 \rho _2 \\ \sigma _2 \sigma _1 \rho _1 & \sigma ^2_2 & \sigma _2 \sigma _3 \rho _2 \\ \sigma _3 \sigma _1 \rho _2 \rho _1 & \sigma _3 \sigma _2 \rho _2 & \sigma ^2_3 \\ \end{bmatrix} $