Online calculator: Lagrange polynomial calculator
https://planetcalc.com/8692Lagrange polynomial calculator. This online calculator builds Lagrange polynomial for a given set of points, shows a step-by-step solution and plots Lagrange polynomial as well as its basis polynomials on a chart. Also, it can interpolate additional points, if given. I wrote this calculator to be able to verify solutions for Lagrange's ...
Online calculator: The Newton Polynomial Interpolation
https://planetcalc.com/9023First, enter the data points, one point per line, in the form x f (x), separated by spaces. If you want to interpolate the function using interpolating polynomial, enter the interpolation points into the following field, as x values, separated by spaces. You can also find some theory about the Newton interpolating polynomial below the calculator.