two steps ahead
if (c.y"bigger than"0)
z = 1/(t/(abs z3 + c)+(1-t)/(rabs(rabs z^3) + c));
else
z = 1/(t/(abs z3 + conj(c))+(1-t)/(rabs(rabs z^3) + conj(c)));
if (c.y"bigger than"0)
z = 1/(t/(abs z3 + c)+(1-t)/(rabs(rabs z^3) + c));
else
z = 1/(t/(abs z3 + conj(c))+(1-t)/(rabs(rabs z^3) + conj(c)));