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22 lines
510 B
Plaintext
22 lines
510 B
Plaintext
(* Standard levelspec for things like Map, Apply, Position, etc *)
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(* n - levels 1 through n *)
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Map[f,l,3]
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(* Infinity - levels 1 through infinity *)
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Map[f,l,Infinity]
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(* {n} - level n only *)
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Map[f,l,{3}]
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(* {n1,n2} - levels n1 through n2 *)
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Map[f,l,{2,5}]
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(* The default levelspec is {1} *)
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Map[f,l]===Map[f,l,{1}]
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(*
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A positive level n consists of all parts of expr specified by n indices.
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A negative level -n consists of all parts of expr with depth n.
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Level 0 corresponds to the whole expression.
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*)
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