  We characterize the unit stable range one 2x2 and 3x3 matrices over
commutative rings. In particular, we characterize the 2x2 matrices which
satisfy the Goodearl-Menal condition. For 2x2 integral matrices we show that
the stable range one and the unit stable range one properties are equivalent,
and, that the only matrix which satisfies the Goodearl-Menal condition is the
zero matrix.
