| A Method for the approximate values of the numerical method. If the known function f (x) n +1 points in the value of f (x i) (i = 0,1,2, ..., n), required the appropriate function φ (x) approximation of f (x), so φ (x i) = f (x i), the function φ (x) is called f (x) of the interpolation function ", x i called the interpolation nodes." If φ (x) is polynomial, polynomial interpolation on the call. "Interpolation is an important method of approximation of function, but also many other numerical methods derived starting point. |