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Indexing {#indexing}
========
There are several ways of referencing values. ArrayFire uses
parenthesis for subscripted referencing instead of the traditional
square bracket notation. Indexing is zero-based, i.e. the first
element is at index zero (<tt>A(0)</tt>). Indexing can be done
with mixtures of:
* integer scalars
* [seq()](\ref af::seq) representing a linear sequence
* [end](\ref af::end) representing the last element of a dimension
* [span](\ref af::span) representing the entire dimension
* [row(i)](\ref af::array::row) or [col(i)](\ref af::array::col) specifying a single row/column
* [rows(first,last)](\ref af::array::rows) or [cols(first,last)](\ref af::array::cols)
specifying a span of rows or columns
See \ref indexing for the full listing.
\snippet test/index.cpp ex_indexing_first
You can set values in an array:
\snippet test/index.cpp ex_indexing_set
Use one array to reference into another.
\snippet test/index.cpp ex_indexing_ref
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