Cross in Matrix

[nakjaen]

How i can input a matrix and have a cross product?

ex.
i j k
2 3 1
1 2 3

and i need a det.
solution: 1i + 2j +3k


my hp prime say error when i input Cross( M1 )
M1= i j k
2 3 1
1 2 3


in hp50g is easy but here