# Array variable An array variable references a dynamic or dimensioned array. ## Example(s) When an array variable is used to describe a dimensioned array, it must be used with a subscript to indicate the specific variable descriptor in the array: ``` a(10) or a(n) ``` Otherwise it must be used in a `mat` statement to indicate all elements in the array: ``` mat a = '' ``` This sets every variable in the array `a` to null. ``` matread afrom... ``` This reads an item and parses the attributes to the dimensioned array `a`. ## See also - [Array references](https://d3codex.com/pickbasic-flashbasic/array-references/) - [Arrays](https://d3codex.com/pickbasic-flashbasic/arrays/) - [Arrays and relational expressions](https://d3codex.com/pickbasic-flashbasic/arrays-and-relational-expressions/) - [extract() function](https://d3codex.com/pickbasic-flashbasic/extract-function/) - [inmat() function](https://d3codex.com/pickbasic-flashbasic/inmat-function/) - [insert() function](https://d3codex.com/pickbasic-flashbasic/insert-function/) - [locate statement](https://d3codex.com/pickbasic-flashbasic/locate-statement/) - [matread statement](https://d3codex.com/pickbasic-flashbasic/matread-statement/) - [matwrite statement](https://d3codex.com/pickbasic-flashbasic/matwrite-statement/) - [Nonfatal error condition](https://d3codex.com/pickbasic-flashbasic/nonfatal-error-condition/) - [read statement](https://d3codex.com/pickbasic-flashbasic/read-statement/) - [ereplace() function](https://d3codex.com/pickbasic-flashbasic/ereplace-function/) - [write statement](https://d3codex.com/pickbasic-flashbasic/write-statement/) --- Source: https://d3codex.com/pickbasic-flashbasic/array-variable/ - part of the D3Codex reference.