numpy.tril_indices(n, k=0, m=None)

numpy.indices(dimensions, dtype=)

class numpy.ndindex(*shape)

class numpy.ndenumerate(arr)

Arrayterator.shape The shape of the array to be iterated over. For an example, see

ndenumerate.next()

nditer.debug_print() Print the current state of the

flatiter.coords An N-dimensional tuple of current coordinates. Examples

numpy.tril_indices_from(arr, k=0)

numpy.putmask(a, mask, values) Changes elements of an array based on conditional and input values. Sets a.flat[n]