fourmulas.comavailable
Formulas is a concise way of expressing symbolic information in Math, Science & Chemistry. They are also used in modern productivity tools like Spreadsheets to compute values.
Since formulas.com is already taken, the closest sibling that is available is Fourmulas.com.
This .com TLD sounds similar, short, brandable and easy to remember domain name with lot of potential to develop into some sort of formula related service.