**newton_interp_1d_test**,
a MATLAB program which
calls newton_interp_1d() to find a polynomial interpolant to data using Newton divided differences.

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

newton_interp_1d, a MATLAB library which finds a polynomial interpolant to data using Newton divided differences.

- newton_interp_1d_test.m, calls all the tests;
- newton_interp_1d_test.sh, runs all the tests;
- newton_interp_1d_test.txt, the output file.

- newton_interp_1d_test01.m, computes the interpolant for a given problem.

The code generates some plots of the data and approximants.

- p01_data.png, a plot of the data and piecewise linear interpolant for problem p01;
- p01_newton.png, a plot of the polynomial interpolant for problem p01;
- p02_data.png, a plot of the data and piecewise linear interpolant for problem p02;
- p02_newton.png, a plot of the polynomial interpolant for problem p02;
- p03_data.png, a plot of the data and piecewise linear interpolant for problem p03;
- p03_newton.png, a plot of the polynomial interpolant for problem p03;
- p04_data.png, a plot of the data and piecewise linear interpolant for problem p04;
- p04_newton.png, a plot of the polynomial interpolant for problem p04;
- p05_data.png, a plot of the data and piecewise linear interpolant for problem p05;
- p05_newton.png, a plot of the polynomial interpolant for problem p05;
- p06_data.png, a plot of the data and piecewise linear interpolant for problem p06;
- p06_newton.png, a plot of the polynomial interpolant for problem p06;
- p07_data.png, a plot of the data and piecewise linear interpolant for problem p07;
- p07_newton.png, a plot of the polynomial interpolant for problem p07;
- p08_data.png, a plot of the data and piecewise linear interpolant for problem p08;
- p08_newton.png, a plot of the polynomial interpolant for problem p08;