First-class functions: Difference between revisions
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0.4999999999999999
0.5000000000000001</lang>
=={{header|BQN}}==
BQN has full support for first class functions in the context of this wiki page. A more detailed article on BQN's implementation of functional programming is discussed [https://mlochbaum.github.io/BQN/doc/functional.html here].
<code>∘</code>(Atop) is used here to compose the two lists of functions given. Higher order functions are then used to apply the functions on a value. There is a slight change in value due to floating point inaccuracy.
BQN has provisions to invert builtin functions using <code>⁼</code>(Undo), and that can also be used for this demonstration(<code>funsB ← {𝕏⁼}¨ funsA</code>).
<lang bqn>funsA ← ⟨⋆⟜2,-,•math.Sin,{𝕩×3}⟩
funsB ← ⟨√,-,•math.Asin,{𝕩÷3}⟩
comp ← funsA {𝕎∘𝕏}¨ funsB
•Show comp {𝕎𝕩}¨<0.5</lang>
<lang bqn>⟨ 0.5000000000000001 0.5 0.5 0.5 ⟩</lang>
[https://mlochbaum.github.io/BQN/try.html#code=ZnVuc0Eg4oaQIOKfqOKLhuKfnDIsLSzigKJtYXRoLlNpbix78J2VqcOXM33in6kKZnVuc0Ig4oaQIOKfqOKImiwtLOKAom1hdGguQXNpbix78J2VqcO3M33in6kKCmNvbXAg4oaQIGZ1bnNBIHvwnZWO4oiY8J2Vj33CqCBmdW5zQgoK4oCiU2hvdyBjb21wIHvwnZWO8J2VqX3CqDwwLjU= Try It!]
=={{header|Bracmat}}==
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