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:''This article is about the array property. For the special syntax which modifies the behavior of a function, see [[bracket axis]]'' | |||
In the APL [[array model]], an '''axis''' is one dimension along which the [[element]]s of an array are organized. The [[rank]] of an array is the number of axes it has, and the [[shape]] is the list of their lengths. The [[index]] of a single element of an array is composed of a one index along each axis. An index [[Index#Index along an axis|along one axis]] is a single number; in this sense, axes are one-dimensional. | In the APL [[array model]], an '''axis''' is one dimension along which the [[element]]s of an array are organized. The [[rank]] of an array is the number of axes it has, and the [[shape]] is the list of their lengths. The [[index]] of a single element of an array is composed of a one index along each axis. An index [[Index#Index along an axis|along one axis]] is a single number; in this sense, axes are one-dimensional. | ||