Lagrange polynomial interpolation is sufficiently simple that for low fixed order of the polynomial it can be coded essentially in a single line. Here you can find a very short Fortran90 or C code ...

Base on the Lagrange interpolation polynomial algorithm, the error analysis is discussed in this paper. Firstly, we derive the Lagrange interpolation polynomial ...

Base on the Lagrange interpolation polynomial algorithm, the error analysis is discussed in this paper. Firstly, we derive the Lagrange interpolation polynomial ...