Alternative Equation Formats

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MathML

A C (i, j) = \frac{\sum_{u \in U_{i j}}^{} {(r_{u i} - {\bar{r}}_{u •}) (r_{u j} - {\bar{r}}_{u •})}^{}}{\sqrt{\sum_{u \in U_{i j}}^{} {(r_{u i} - {\bar{r}}_{u •})}^{2} \sum_{u \in U_{i j}}^{} {(r_{u j} - {\bar{r}}_{u •})}^{2}}}

A C (i, j) = \frac{\sum_{u \in U_{i j}}^{} {(r_{u i} - {\bar{r}}_{u •}) (r_{u j} - {\bar{r}}_{u •})}^{}}{\sqrt{\sum_{u \in U_{i j}}^{} {(r_{u i} - {\bar{r}}_{u •})}^{2} \sum_{u \in U_{i j}}^{} {(r_{u j} - {\bar{r}}_{u •})}^{2}}}