  This article introduces and explains a computer algebra system (CAS) wxMaxima
for Calculus teaching and learning at the tertiary level. The didactic
reasoning behind this approach is the need to implement an element of
technology into classrooms to enhance students' understanding of Calculus
concepts. For many mathematics educators who have been using CAS, this material
is of great interest, particularly for secondary teachers and university
instructors who plan to introduce an alternative CAS into their classrooms. By
highlighting both the strengths and limitations of the software, we hope that
it will stimulate further debate not only among mathematics educators and
software users but also also among symbolic computation and software
developers.
