Why qombinatorics?

Many times I found myself busy in calculating combinatorics calculus for several reasons. Counting the combinations, the permutations and the binomial coefficients has been useful to solve problems and for calculating the probabilities in card games.
The calculations are non difficult, but after a while they get boring and so I looked for a graphical interface capable to solve them. Unfortunately I never found one. For this reason I decided to write an application from scratch by myself and to release it to the public domain: the result is qombinatorics!