indexing

[sglyon]

We have this example:

|                                | .. code-block:: matlab        | .. code-block:: python        | .. code-block:: julia     |
|                                |                               |                               |                           |
| Access one element             |     A(2, 2)                   |    A[2, 2]                    |     A[2, 2]               |

We should use this example to show one vs zero based indexing (e.g. change the python one to A[1, 1]