Interpolation and approximation free lecture notes download, Computer Aided Design pdf notes
Interpolationis the process of defining a function that takes on specified values at specified points. Interpolation as used here is different to "smoothing"; the techniques discussed here have the characteristic that the estimated curve passes through all the given points.
Approximationis the process of defining a function that take on approximate points or near about a fix point. .In approximation, we measure the deviation of the given function f (x) from the approximating function P(x) for all values of aclose interval of a subset.