newton_interp_1d, an Octave code which finds a polynomial interpolant to data using Newton divided differences.
NEWTON_INTERP_1D needs access to the R8LIB libraries. The test code also needs access to the TEST_INTERP library.
The computer code and data files described and made available on this web page are distributed under the MIT license
newton_interp_1d is available in a C version and a C++ version and a Fortran90 version and a MATLAB version and an Octave version and a Python version.
r8lib, a MATLAB code which contains many utility routines, using double precision real (R8) arithmetic.
test_interp_1d, an Octave code which defines test problems for interpolation of data y(x), depending on a 2D argument.