# Alternative Equation Formats

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

## MathML

${\mathrm{\Sigma}}_{i}{w}_{i}$

## MathML rendered with MathJax

${\mathrm{\Sigma}}_{i}{w}_{i}$

## Math as LaTeX Source

$\Sigma _ i w_ i $