interp, a Python code which takes a set of data associated with successive values of a parameter, and produces an interpolating function which can be evaluated over a continuous range of the parameter.
The information on this web page is distributed under the MIT license.
interp is available in a C version and a C++ version and a Fortran77 version and a Fortran90 version and a MATLAB version and an Octave version and a Python version.
divdif, a Python code which uses divided differences to interpolate data.
lagrange_interp_1d, a Python code which defines and evaluates the Lagrange polynomial p(x) which interpolates a set of data, so that p(x(i)) = y(i).
rbf_interp_1d, a Python code which defines and evaluates radial basis function (RBF) interpolants to 1d data.
shepard_interp_1d, a Python code which defines and evaluates shepard interpolants to 1d data, which are based on inverse distance weighting.
test_interp, a Python code which defines a number of test problems for interpolation, provided as a set of (x,y) data.
test_interp_1d, a Python code which defines test problems for interpolation of data y(x), depending on a 1d argument.
vandermonde_interp_1d, a Python code which finds a polynomial interpolant to data by setting up and solving a linear system involving the Vandermonde matrix.