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• Array iterator API
• Constants of the numpy.ma module

  ...the array with the ctypes module. MaskedArray.dtype Data-type of the array's elements. MaskedArray.flags Information about the memory layout of the array. MaskedArray.itemsize Length of one array element in bytes. MaskedArray.nbytes To...

• Contributing to NumPy
• CPU build options
• Data type classes (numpy.dtypes)
• Data type promotion in NumPy
• Data types

  ..., 3], dtype='d') array([1., 2., 3.], dtype=float64) See Specifying and constructing data types for more information about specifying and constructing data type objects, including how to specify parameters like the byte order. To convert...

• For downstream package authors

  ...is job, either all warnings or otherwise at least DeprecationWarning and FutureWarning. This gives you an early warning about changes in NumPy to adapt your code. If you want to test your own wheel builds against the latest NumPy nightly bu...

• How to contribute to the NumPy documentation
• How to extend NumPy
• How to write a NumPy how-to
• Internal organization of NumPy arrays
• NumPy 1.13.0 Release Notes

  ...C long double floating point information In previous versions of NumPy, the finfo function returned invalid information about the double double format of the longdouble float type on Power PC (PPC). The invalid values resulted from the fai...

• NumPy 1.14.0 Release Notes

  ...ur. Compatibility notes The mask of a masked array view is also a view rather than a copy There was a FutureWarning about this change in NumPy 1.11.x. In short, it is now the case that, when changing a view of a masked array, changes to...

• NumPy 1.14.1 Release Notes
• NumPy 1.16.0 Release Notes
• NumPy 1.17.0 Release Notes
• NumPy 1.17.3 Release Notes
• NumPy 1.19.0 Release Notes
• NumPy 1.19.2 Release Notes
• NumPy 1.20.0 Release Notes
• NumPy 1.21.3 Release Notes
• NumPy 1.23.0 Release Notes
• NumPy 1.24.1 Release Notes
• NumPy 1.25.0 Release Notes
• NumPy 1.6.2 Release Notes
• NumPy 1.7.0 Release Notes
• NumPy 1.8.0 Release Notes
• NumPy 2.0 migration guide
• NumPy 2.0.0 Release Notes
• NumPy 2.1.0 Release Notes
• NumPy C code explanations
• NumPy for MATLAB users