11. So, we see that polynomial interpolation overcomes most of the problems of linear interpolation . 12. The basic operation of linear interpolation between two values is commonly used in computer graphics. 13. Here is our example using linear interpolation : 14. Calculating the interpolating polynomial is computationally expensive ( see computational complexity ) compared to linear interpolation . 15. In cases where speed is a major concern, linear interpolation may be a better choice. 16. In more accurate implementations, linear interpolation is used between the two neighbouring pixels that straddle the gradient direction. 17. The tabulated SPDs presented by the CIE today are derived by linear interpolation of the data set down to. 18. Polynomial interpolation can estimate local maxima and minima that are outside the range of the samples, unlike linear interpolation . 19. 1909 1930 calendar year GDP estimates are from MeasuringWorth . com Fiscal Year estimates are derived from simple linear interpolation . 20. The key idea is to perform linear interpolation first in one direction, and then again in the other direction.