Vocabulary/curlyrtu

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u} y Composite Item Adverb

Rank Infinity -- operates on x and y as a whole -- WHY IS THIS IMPORTANT?



u} y executes  u y to calculate the item indexes m to be used at each atom, and then produces the result  m} y .


Common Uses

The construct u} y is an obsolete relic of early J, superseded by the gerund form of Composite Items (m} y).


x u} y Amend Adverb

Rank Infinity -- operates on [x and] y as a whole -- WHY IS THIS IMPORTANT?



x u} y executes  x u y to calculate the atom numbers to be modified, and then replaces those atoms of y with atoms of x.

The atom number of the atom of y whose index list is d is  ($y)#.d .


Common uses

The construct  x u} y is an obsolete relic of early J, superseded by the gerund form of Amend (x m} y).