Purely functional is a term in computing used to describe algorithms, data structures or programming languages that exclude destructive modifications (updates). According to this restriction, variables are used in a mathematical sense, with identifiers referring to immutable, persistent values.
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Famous quotes containing the words purely and/or functional:
“It was a purely wild and primitive American sound, as much as the barking of a chickaree, and I could not understand a syllable of it.”
—Henry David Thoreau (1817–1862)
“In short, the building becomes a theatrical demonstration of its functional ideal. In this romanticism, High-Tech architecture is, of course, no different in spirit—if totally different in form—from all the romantic architecture of the past.”
—Dan Cruickshank (b. 1949)