Alternative Equation Formats

The equation on this page is available in multiple formats. Depending on your browser, some formats might not render correctly.

MathML

\frac{n}{\sum_{i = 1}^{n} w_{i}}

\frac{n}{\sum_{i = 1}^{n} w_{i}}

$\frac{n}{\sum _{i=1}^ nw_ i}$