Given a set of arbitrary grid points stored in a column vector, these scripts will construct the corresponding first and second derivative matrices based on 3-, 5-, and 7-point stencils.
Greg von Winckel (2023). 1-D Unstructured Finite Differences (https://www.mathworks.com/matlabcentral/fileexchange/8016-1-d-unstructured-finite-differences), MATLAB Central File Exchange. Retrieved .
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