Alternative Equation Formats

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MathML

{d f}_{u} = \frac{{(\frac{s_{1}^{2}}{\sum_{i = 1}^{n_{1}^{⋆}} f_{1 i} w_{1 i}} + \frac{{\hat{μ}}_{r}^{2} s_{2}^{2}}{\sum_{i = 1}^{n_{2}^{⋆}} f_{2 i} w_{2 i}})}^{2}}{\frac{s_{1}^{4}}{(n_{1} - 1) {(\sum_{i = 1}^{n_{1}^{⋆}} f_{1 i} w_{1 i})}^{2}} + \frac{{\hat{μ}}_{r}^{4} s_{2}^{4}}{(n_{2} - 1) {(\sum_{i = 1}^{n_{2}^{⋆}} f_{2 i} w_{2 i})}^{2}}}

Math Rendered as SVG

Math as LaTeX Source

\[ \mr{df}_ u = \frac{\left( \frac{s^2_1}{\sum _{i=1}^{n^\star _1} f_{1i} w_{1i}} + \frac{\hat{\mu }_ r^2 s^2_2}{\sum _{i=1}^{n^\star _2} f_{2i} w_{2i}} \right)^2}{\frac{s^4_1}{(n_1-1)\left(\sum _{i=1}^{n^\star _1} f_{1i} w_{1i}\right)^2} + \frac{\hat{\mu }_ r^4 s^4_2}{(n_2-1)\left(\sum _{i=1}^{n^\star _2} f_{2i} w_{2i}\right)^2}} \]