Documentation

Mathematica Teacher's Edition

Built-in Functions

Programming

Functional Programming

FoldList

FoldList[f, x, a, b, ... ] gives x, f[x, a], f[f[x, a], b], ... .

Example: FoldList[f, x, a, b, c].
FoldList[Plus, 0, list] generates cumulative sums of the elements in list.
Example: FoldList[Plus, 0, a, b, c].
With a length list, FoldList generates a list of length .
The head of list in FoldList[f, x, list] need not be List.
See The Mathematica Book on the web: Section 2.2.2.
See also: Fold, NestList, ComposeList, Partition.

Further Examples