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- Flatten
- Flattens the structure of nested arrays or sets
- Usage
- Flatten(array)
- Arguments
- array (ARRAY(T) or SET(T)). T is any type.
- Returned Object
- If array has type ARRAY(ARRAY(T)), the function returns an element of type ARRAY(T). If the argument is Undef, returns Undef.
- Description
- This function is used to flatten the structure of nested arrays or sets. Let us assmue that array is a nested array: array has the form
 , where xi is an ARRAY:  .
The array array can thus be written
 .
Then, the flattened array obtained from array is the ARRAY:
- Note
- This function can be applied to any nesting combination of ARRAYs and SETs (cf. example)
- See Also
-
Array,
List,
Pos,
At,
Head.
Examples
AML> Flatten([[10,11],[12],[],[13,14,15]])
<ARRAY(INT)> [10,11,12,13,14,15]
AML> Flatten(Set([10,11],[12],[],[11,11,12])
<SET(INT)> [10,11,12]
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