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assigns to the variable named <code>ari</code> an array with the values 1, 2, 3, 4, and 5, since the default value of 1 is used as the increment.
[[One-based indexing|Indexing]] is one-based,<ref>{{cite web|title=Matrix Indexing|url=http://www.mathworks.com/help/matlab/math/matrix-indexing.html|publisher=MathWorks|access-date=August 14, 2013}}</ref> which is the usual convention for [[matrix (mathematics)|matrices]] in mathematics, unlike zero-based indexing commonly used in other programming languages such as C, [[C++]], and [[Java (programming language)|Java]].
Matrices can be defined by separating the elements of a row with blank space or comma and using a semicolon to separate the rows. The list of elements should be surrounded by square brackets <code>[]</code>. Parentheses <code>()</code> are used to access elements and subarrays (they are also used to denote a function argument list).
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