Japanese company Casio, engaged in the manufacture of electronic and optical devices, announced a device called fx-CP400, which is a calculator with a 4.8-inch color touch screen with 320 x 528 pixels. The display will simplify the view of mathematical formulas, graphs and images, which will be very useful for understanding the relationship between the equations and graphical data.
The device has the following dimensions: 206 x 89 x 21 mm, weight - 320 grams, available 30 MB of internal memory, support USB 2.0 interface, power is supplied by four rechargeable batteries AAA.
The device has three modes of difficulty, from basic functions such as square roots, trigonometric functions, etc., and then advanced functions, including differential calculus operations with complex numbers, sigma calculation, and, finally, a more complex calculations, such as user-defined formulas.

Calculator Casio fx-CP400 will compete in the market with the model Nspire CX CAS and will be available next summer.