Smartboard Calculator - many functional calculator for windows phone. Calculator - Board, which you can use to vicelat examples for  algebra, geometry, trigonometry, and statistics, also, there are units of time, distance, speed, weight, temperature, energy, pressure and more. The peculiarity of it is that you see all the expressions and results, as on the Board. All the calculations that you write, at any moment you can restore the history. Original calculator that you want to show your friends.