Numerical Methods calculators
https://atozmath.com/Menu/ConmMenu.aspxNewton's Forward Difference formula 3. Newton's Backward Difference formula 4. Newton's Divided Difference formula 5. Lagrange's formula 6. Stirling's formula 7. Bessel's formula 4.2 Numerical Differentiation first order and second order using 1. 2 point Forward, Backward, Central difference formula 2. 3 point Forward, Backward, Central ...