# Alternative Equation Formats

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

## MathML

${D}_{2}=\sum _{i}({R}_{i}-1)({R}_{i}-2)({S}_{i}-1)({S}_{i}-2)$

## MathML rendered with MathJax

${D}_{2}=\sum _{i}({R}_{i}-1)({R}_{i}-2)({S}_{i}-1)({S}_{i}-2)$

## Math as LaTeX Source

$D_2 =\sum _ i (R_ i-1)(R_ i-2)(S_ i-1)(S_ i-2)$