Section: Elementary Functions
y = any(x,d)
where x is an n-dimensions array of logical type.
The output is of logical type.  The argument d is 
optional, and denotes the dimension along which to operate.
The output y is the same size as x, except that it is 
singular along the operated direction.  So, for example,
if x is a 3 x 3 x 4 array, and we any operation along
dimension d=2, then the output is of size 3 x 1 x 4.
 
If d is omitted, then the summation is taken along the 
first non-singleton dimension of x. 
--> A = [1,0,0;1,0,0;0,0,1] A = 1 0 0 1 0 0 0 0 1
We start by calling any without a dimension argument, in which 
case it defaults to the first nonsingular dimension (in this case, 
along the columns or d = 1).
--> any(A) ans = 1 0 1
Next, we apply the any operation along the rows.
--> any(A,2) ans = 1 1 1