lagrange_approx_1d, a MATLAB code which defines and evaluates a Lagrange polynomial p(x) of degree M which approximates a set of ND data points (x(i),y(i)).
LAGRANGE_APPROX_1D needs access to the R8LIB library. The test code also needs access to the TEST_INTERP_1D library.
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
lagrange_approx_1d is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version.
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