1. It is not known how Brahmagupta arrived at his interpolation formula . 2. This formula is called the Fuchs-Sutugin interpolation formula . 3. This is an implementation of the Whittaker Shannon interpolation formula . 4. Gou derived a cubic interpolation formula for his astronomical calculations. 5. This is Stirling's interpolation formula truncated at the second-order differences. 6. :Conceptually the simplest way to figure out that summation is through the Lagrange interpolation formula . 7. For a more practical approach based on band-limited signals, see Whittaker Shannon interpolation formula . 8. Applying the Lagrange interpolation formula to do quadratic interpolation on the inverse of " f " yields 9. (also derived earlier, as mentioned above ) and the Brahmagupta interpolation formula for computing sine values. 10. When that interval is, ] } }, the applicable reconstruction formula is the Whittaker Shannon interpolation formula .
