1 2 3 4 5 6
EVAL 2 -6 2 -1 AT 3 DERIV 2 -6 2 -1 AT 3 DIV 2 -6 2 -1 AT 3 EVAL 1 0 0 -8 AT 2 DERIV 1 0 0 -8 AT 2 DIV 1 0 0 -8 AT 2