For comparison with other CAS choose from: Axiom Derive Maple Mathematica Reduce
limit(sin(x)/x, x, 0);
1
limit((3*sin(%pi*x) - sin(3*%pi*x))/x^3, x, 0);
^
3 4 %pi
limit((2*x+5)/(3*x-2), x, %inf);
2 %inf + 5 ---------- 3 %inf - 2