Maxima is a software of counting written in LISP and based on code Macsyma. Maxima is therefore am software of free and free, definite counting. He offers some graphic capacities.
One very bring closer to the performances of Maxima to other systems of definite counting of the same type such as Maple, Mathematica or Mupad.
The last version of Maxima consists of corrections, what makes it dependable with little of bugs. Application supports several platforms among which Windows and Linux.