For comparison with other CAS choose from: Axiom Derive Macsyma 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 = infinity );
2/3