Currently, the helper functions in helper.hpp only work on single dimensional arrays. We should extend this to multi-dimensional arrays. numpy.fft's helper functions use the axes keyword argument for this. This syntax could also be used in broadcasting operations (#4). Possibly, some other syntax is more appropriate in the C++ / xtensor context. We should investigate.
Currently, the helper functions in
helper.hpponly work on single dimensional arrays. We should extend this to multi-dimensional arrays.numpy.fft's helper functions use theaxeskeyword argument for this. This syntax could also be used in broadcasting operations (#4). Possibly, some other syntax is more appropriate in the C++ / xtensor context. We should investigate.