Tracy Allen's website (www.emesystems.com under "app-notes" link) discusses multiple precision and fixed point arithmetic. As Franklin indicated, the Stamps provide 16-bit unsigned integer arithmetic only (with some special cases for multiplication and division). It's common to used fixed point arithmetic and you have to adjust the values you're working with to account for scaling changes.
Comments
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
- Stephen