DArrayFold

Reductions of darrays

Signature of DArrayFold

List of Import References :
See Array
See BOOL
See Bitset
See DArray
See DENOTATION
See Nat
See Option

SIGNATURE DArrayFold [data]

$Date: 2010-09-30 18:24:17 +0200 (Do, 30. Sep 2010) $ ($Revision: 616 $)

SORT data

IMPORT DArray[data] ONLY dArray

Left and right folding of darrays. Informally: + / [a,b,...,y,z] == a + (b + (...(y + z)...)) and + \ [a,b,...,y,z] == z + (y + (...(b + a)...)). Both are undefined for empty darrays.

FUN / \ : (data**data->data)**dArray[data]->data

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