Performs a simple mathematical operation (e.g. adding, subtracting, multiplying, dividing) on two two-dimensional fields. The fields can contain multiple scalar values like the components of velocity. One field is interpolated using TriScatteredInterp to match the other field.
Originally intended to determine the convergence of Particle Image Velocimetry data when using multiple adaptive cross-correlations or easily see the differences between measurements.
Note: I wasn't aware of the fact that it did depend on the Neural Network Toolbox, I'm sorry if anybody ran into odd error messages (next time let me know otherwise it stays useless ;-) ).
small improvement in the removeNans subfunction
Removed the dependence on the Neural Network Toolbox
Removed one of my comments in the $help since it was not entirely correct, included a reference to the underlying MATLAB function instead.
Corrected typos, removed redundant license, the helper function now writes as well the interpolation type in the summary.
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