Apply a callback to an array: Difference between revisions
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{{FormulaeEntry|page=https://formulae.org/?script=examples/Apply_a_callback_to_an_array}}
'''Solution'''
Most programming languages define a high-order map function. In Fōrmulæ, there is ''arraization'' (by analogy with ''summation''). In the following expression, the "big" curly braces resemble the "big" sigma of a summation:
[[File:Fōrmulæ - Apply a callback to an array 01.png]]
[[File:Fōrmulæ - Apply a callback to an array 02.png]]
The elements of the array are not required to be of the same type:
[[File:Fōrmulæ - Apply a callback to an array 03.png]]
[[File:Fōrmulæ - Apply a callback to an array 04.png]]
=={{header|GAP}}==
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