hypermatrices

Description

Hypermatrix type allows to manipulate multidimensional arrays.

They can be defined by extension of 2D matrices as follows a=[1 2;3 4];a(:,:,2)=rand(2,2) or directly using hypermat function.

Entries can be real or complex numbers, polynomials, rationals, strings, booleans.

Hypermatrices are mlists: mlist(['hm','dims','entries'],sz,v) where sz is the row vector of dimensions and v the column vector of entries (first dimension are stored first).

The number of dimension of hypermatrices with right-most sizes equal to 1 are automatically reduced. An hypermatrix with only two dimensions is automatically changed to a regular matrix (type 1).

Examples

a(1,1,1,1:2)=[1 2]
a=[1 2;3 4];a(:,:,2)=rand(2,2)
a(1,1,:)
 
size(a)
 
a(:,:,1) //dimensionality reduction
type(a(:,:,1))
 
[a a]

See Also

• hypermat — initializes an N dimensional matrix
• zeros — matrix made of zeros
• ones — matrix made of ones
• grand — Random numbers
• matrix — reshape a vector or a matrix to a different size matrix