ndarray.__deepcopy__() ? Deep copy of array. Used if copy.deepcopy is called on an array.

ndarray.argsort(axis=-1, kind='quicksort', order=None) Returns the indices that would sort this array. Refer to

matrix.searchsorted(v, side='left', sorter=None) Find indices where elements of v should be inserted in a to maintain

MaskedArray.view(dtype=None, type=None)

generic.cumprod() Not implemented (virtual attribute) Class generic exists solely to derive numpy scalars from,

MaskedArray.__rfloordiv__(other)

dtype.itemsize The element size of this data-type object. For 18 of the 21 types this number is fixed by the data-type

recarray.prod(axis=None, dtype=None, out=None, keepdims=False) Return the product of the array elements over the given axis

recarray.argpartition(kth, axis=-1, kind='introselect', order=None) Returns the indices that would partition this

ndarray.sum(axis=None, dtype=None, out=None, keepdims=False) Return the sum of the array elements over the given axis.