This script computes Gauss nodes and weights for numerically integrating a fuction over an arbitrary triangular domain. Note: This method uses the collapsed square rather than the general cubature case.
Greg von Winckel (2023). Gaussian Quadrature for Triangles (https://www.mathworks.com/matlabcentral/fileexchange/9230-gaussian-quadrature-for-triangles), MATLAB Central File Exchange. Retrieved .
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Sign of weights depended on ordering of vertices through the Jacobian. This has been fixed.