H1 > H2 performs element-wise comparisons between handle arrays H1 and 
H2.  H1 and H2 must be of the same dimensions unless one is a scalar.  
The result is a logical array of the same dimensions, where each
element is an element-wise > result.
If one of H1 or H2 is scalar, scalar expansion is performed and the 
result will match the dimensions of the array that is not scalar.
TF = GT(H1, H2) stores the result in a logical array of the same 
See also SWPREF, SWPREF/EQ, SWPREF/GE, SWPREF/LE, SWPREF/LT, SWPREF/NE Help for swpref/gt is inherited from superclass HANDLE
Reference page in Doc Center
   doc swpref/gt