Description: The use of interpolation basis function can easily obtain the Lagrange interpolation polynomial, the formula is compact and in the theoretical analysis is easy, but when the interpolation nodes change all the interpolation basis function lk (x) (k = 0,1, ..., n) changes have to be followed, the whole formula will also change, which in the actual calculation is very convenient, in order to overcome this shortcoming, the Newton interpolation.
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ntchazhi.cpp
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