Equation Icon  ( ) ( ) ( ) 0 0 0 0 0 0 0 0 0 1 0 0 | 0 0 1 0 | | 0 0 0 1| | − m2 0 0 0| ut = |( |) ux + |( |) uy + |( |) u. (3.44 ) 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0