ndarray
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ndarray: an N-dimensional array with array views, multidimensional slicing, and efficient operations
https://en.wikipedia.org/wiki/Argument_(complex_analysis) Implement phase angle (argument) calculation for complex numbers in arrays, providing NumPy-compatible functionality. The angle represents the phase of a complex number in the complex plane, calculated as atan2(imaginary,...
I've not yet used ndarray, but looking at its description, it sounds like it follows Python's approach of using negative indices to could back from the end of an array?...