 Brahmagupta's interpolation formula

Brahmagupta's interpolation formula is a technique for finding the value of a polynomial at a certain point, based on its values at known points. It is often used in the context of numerical analysis and can be particularly useful in the interpolation of data points. Brahmagupta's formula can be derived from the idea of using differences and polynomial interpolation, and it's closely related to what we now know as finite differences.