Indexing Routines

The following tables show indexing routines provided by NLCPy.

Generating Index Arrays

`nlcpy.diag_indices`	Returns the indices to access the main diagonal of an array.
`nlcpy.nonzero`	Returns the indices of the elements that are non-zero.
`nlcpy.where`	Returns elements chosen from x or y depending on condition.

`nlcpy.diag`	Extracts a diagonal or constructs a diagonal array.
`nlcpy.diagonal`	Returns specified diagonals.
`nlcpy.select`	Returns an array drawn from elements in choicelist, depending on conditions.
`nlcpy.take`	Takes elements from an array along an axis.

Fills the main diagonal of the given array of any dimensionality.