I thought there was already some discussion on multidimensional arrays (similar to Numpy's NDArray), but I couldn't find anything. If that's not the case please feel free to link to that issue/discussion. The request is pretty straightforward, a type similar to Array<Array<... <MyType>>> but laid out in contiguous memory. Of course, swift-numerics could expand that type for numeric Element types, similar to the proposals described here to add useful operations such as element-wise numeric operations, matrix multiplication and other useful features.