Arrays and Pseudo lists

Array
Array(A,f)

Inputs an array A and a function f. It returns the the array obtained by applying f to each entry of A (and leaves A unchanged).
PermuteArray
PermuteArray(A,f)

Inputs an array A of dimension d and a permutation f of degree at most d. It returns the array B defined by B[i1][i2]...[id] = A[f(i1)][f(i2)]...A[f(id)] (and leaves A unchanged).
ArrayDimension
ArrayDimension(A)

Inputs an array A and returns its dimension.
ArrayDimensions
ArrayDimensions(A)

Inputs an array A and returns its dimensions.
ArraySum
ArraySum(A)

Inputs an array A and returns the sum of its entries.
ArrayValue
ArrayValue(A,x)

Inputs an array A and a coordinate vector x. It returns the value of the entry in A with coordinate x.
ArrayValueFunctions
ArrayValueFunctions(d)

Inputs a positive integer d and returns an efficient version of the function ArrayValue for arrays of dimension d.
ArrayAssign
ArrayAssign(A,x,n)

Inputs an array A and a coordinate vector x and an integer n. It sets the entry of A with coordinate x equal to n.
ArrayAssignFunctions
ArrayAssignFunctions(d)

Inputs a positive integer d and returns an efficient version of the function ArrayAssign for arrays of dimension d.
ArrayIterate
ArrayIterate(d)

Inputs a positive integer d and returns a function ArrayIt(Dimensions,f). This function inputs a list Dimensions of d positive integers and also a function f(x). It applies the function f(x) to each integer list x of length d with entries x[i] in the range [1..Dimension[i]].
BinaryArrayToTextFile
BinaryArrayToTextFile(file,A)

Inputs a string containing the address of a file, and an array A of 0s and 1s. The array represents a pure cubical complex. A representation of this complex is written to the file in a format that can be read by the CAPD (Computer Assisted Proofs in Dynamics) software developed by Marian Mrozek and others.

The second input A can also be a pure cubical complex.
FrameArray
FrameArray(A)

Inputs an array A and returns the array obtained by appending a 0 to the beginning and end of each "row" of the array.
UnframeArray
UnframeArray(A)

Inputs an array A and returns the array obtained by removing the first and last entry in each "row" of the array.
Add
Add(L,x)

Let L be a pseudo list of length n, and x an object compatible with the entries in L. If x is not in L then this operation converts L into a pseudo list of length n+1 by adding x as the final entry. If x is in L the operation has no effect on L.
Append
Append(L,K)

Let L be a pseudo list and K a list whose objects are compatible with those in L. This operation applies Add(L,x) for each x in K.
ListToPseudoList
ListToPseudoList(L)

Inputs a list L and returns the pseudo list representation of L.