Important: The interp function has been deprecated. Use the superseding command CurveFitting[PolynomialInterpolation] instead. A call to interp automatically generates a call to CurveFitting[PolynomialInterpolation].

The interp function computes the polynomial of degree less than or equal to n in the variable v which interpolates the points , , ..., .

If the same x-value is entered twice, it is an error, whether or not the same y-value is entered; all independent values must be distinct.