|Fix||m f. u f.|
If x is a proverb, then y=: x f. is equivalent to it,
except that any names that occur in the definition of x
are (recursively) replaced by their referents.
Consequently, any subsequent change in these referents that might
change the definition of x will not affect the definition
of y .
If x is the name of any entity (that is, a pronoun, proverb, pro-adverb, or pro-conjunction), then 'x' f. is equivalent, but with all names in its definition recursively replaced by their referents.
x f. will not fix any part of x that contains $: .
sum=: +/ mean=: sum % # norm=: - mean norm a=: 2 3 4 5 _1.5 _0.5 0.5 1.5 N=: norm f. N a _1.5 _0.5 0.5 1.5 norm - mean N - (+/ % #) sum=: -/ norm a 2.5 3.5 4.5 5.5 N a _1.5 _0.5 0.5 1.5 adv=: norm@ *: adv norm@*: adv norm@ 'adv' f. (- (-/ % #))@ 'a' f. 2 3 4 5