Is there a way to checking if two n-dimensional "matrices" are equal without writing a loop? (n>2)

[Joshua Benjamin Miller]

I am writing code that involves three dimensional spatial data.

I need to check if two 3D matrices, which represent values at (x,y,z) spatial locations, are equal.

If use an associative array to handle the 3 dimensions, it seems like I need to use a loop.

The simple example below illustrates the issue for a one-dimensional associative array.

: A=asarray_create("real",1)

: 
: B=asarray_create("real",1)

: 
: asarray(A,1,42)

: 
: asarray(B,1,42)

: 
: A==B
  0

: 
: a=asarray(A,1)

: 
: b=asarray(B,1)

: 
: a==b
  1