Alternative Equation Formats

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MathML

\begin{aligned} \bar{y_{1}} & = \frac{1}{n_{1}} \sum_{i = 1}^{n_{1}} y_{1 i} \\ \bar{y_{2}} & = \frac{1}{n_{2}} \sum_{i = 1}^{n_{2}} y_{2 i} \\ \bar{y_{d}} & = \bar{y_{1}} - \bar{y_{2}} \\ s_{1} & = {(\frac{1}{n_{1} - 1} \sum_{i = 1}^{n_{1}} (y_{1 i} - \bar{y_{1}})^{2})}^{\frac{1}{2}} \\ s_{2} & = {(\frac{1}{n_{2} - 1} \sum_{i = 1}^{n_{2}} (y_{2 i} - \bar{y_{2}})^{2})}^{\frac{1}{2}} \end{aligned}

Math Rendered as SVG

Math as LaTeX Source

\begin{align*} \bar{y_1} & = \frac{1}{n_1} \sum _{i=1}^{n_1} y_{1i} \\ \bar{y_2} & = \frac{1}{n_2} \sum _{i=1}^{n_2} y_{2i} \\ \bar{y_ d} & = \bar{y_1} - \bar{y_2} \\ s_1 & = \left( \frac{1}{n_1-1} \sum _{i=1}^{n_1} (y_{1i} - \bar{y_1})^2 \right)^\frac {1}{2} \\ s_2 & = \left( \frac{1}{n_2-1} \sum _{i=1}^{n_2} (y_{2i} - \bar{y_2})^2 \right)^\frac {1}{2} \\ \end{align*}