Quick calculation, easy and quick, lifes wonderful gadgets
Bright colors, mobile phone with you, let you fondle admiringly, key moment use it
Precise and convenient
Features:
This APP is a collection of the three most basic permutation and combination equation, perhaps you are an accountant, and maybe youre just a college student, when you be agitated by repeated calculation, this APP is to provide a choice, permutation and combination, as long as easily fill in the two Numbers, you can know the result right now. The page is simple and easy to understand, and the summation formula is clear. You deserve it.