# Alternative Equation Formats

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

## MathML

${r}_{x{z}_{2}.{z}_{1}}$

## MathML rendered with MathJax

${r}_{x{z}_{2}.{z}_{1}}$

## Math as LaTeX Source

$r_{xz_2.z_1}$