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...wo for the arguments in the [[dyadic]] case. These ranks may be [[Infinity|infinite]], or larger than the [[maximum rank]] if there is one, in which case they ...ved function]] are determined by its operands. For most operators they are infinite; for [[close composition]]s they are obtained from the right argument, and

| numeric types = float, infinite precision float

...iter'' operator, which produces from a function and an initial argument an infinite list of all the results obtained by iterating that function (as with the [[

=== Infinite left arguments === In [[J]] 4.02 (released 1998) and later, an [[infinity|infinite]] value in the left argument causes the corresponding axis of the right arg

...y also be subject to [[overflow]], resulting in a [[DOMAIN ERROR]] or an [[infinite]] result.

...empt to [[Enclose]] or [[Disclose]] this array results in the same kind of infinite stack, so it should be identical to the scalar itself.

...ernion, octonion, [[rational]], ball arithmetic, variable precision float, infinite precision

In the context of summation, the notation can be used to write any sum as an infinite sum without limits:

...ntaxhighlight>). This is because negative assigned rank in J is encoded as infinite rank; in J's terminology, negative rank is "internal rank" only.

...according to a set of predefined rules. The Game of Life is defined on an infinite [[Boolean]] grid, but usually only finite patterns, where all 1 values fit

...oduce an asymmetry in order to handle the final division or divider (for [[infinite array]]s there would be no need). There can always be elements past the las

...d to give it some space to move around. The Game of Life takes place on an infinite two-dimensional grid, but that might be a bit large for our computer! Let's

...mmetric range monad (<syntaxhighlight lang=j inline>i:</syntaxhighlight>), infinite left arguments to [[Take]]

* '''Infinite arrays and diagonalization'''. J. O. Shallit. [https://doi.org/10.1145/8001 * '''Indexing infinite arrays: Non-finite mathematics in APL'''. R. W.W. Taylor. [https://doi.org/