Alternative Equation Formats

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MathML

\begin{array}{rcl} E [(z_{i}^{^{'}} γ)^{2}] & \approx & {[E ({\bar{z}}_{1} γ_{1} + \dots + {\bar{z}}_{J} γ_{J})]}^{2} + V [{\bar{z}}_{1} γ_{1} + \dots + {\bar{z}}_{J} γ_{J}] = ε \\ V [(z_{i}^{^{'}} γ)^{2}] & \approx & E [({\bar{z}}_{1} γ_{1} + \dots + {\bar{z}}_{J} γ_{J})^{4}] - ε^{2} = 1 \end{array}

Math Rendered as SVG

Math as LaTeX Source

\begin{eqnarray*} \text {E}\left[(\Strong{z}^{'}_{i}{\bgamma })^2\right]& \approx & \left[\text {E}\left(\bar{z}_{1}{\gamma _1}+\cdots +\bar{z}_{J}{\gamma _ J}\right)\right]^2+\text {V}\left[\bar{z}_{1}{\gamma _1}+\cdots +\bar{z}_{J}{\gamma _ J}\right]=\varepsilon \\ \text {V}\left[(\Strong{z}^{'}_{i}{\bgamma })^2\right]& \approx & \text {E}\left[(\bar{z}_{1}{\gamma _1}+\cdots +\bar{z}_{J}{\gamma _ J})^4\right]-\varepsilon ^2=1 \end{eqnarray*}