HEADER

return the header of a 1- or 2-dimensional array
Major Section:  ARRAYS

Example Form:
(header 'delta1 a)

General Form:
(header name alist)
where name is arbitrary and alist is a 1- or 2-dimensional array. This function returns the header of the array alist. The function operates in virtually constant time if alist is the semantic value of name. See arrays.