Calculator

Calculator includes all the usual operations. Key features: Small size; - Suitable for any screen and resolution; - Easy to use; - Tap to copy, long tap to insert the results; - Short operation ( "3x =" - "9", "3 + =" - "6", "3xx" - "9", "3 +" - "6" and others); - Trigonometric functions (cos, sin, tan, sinh, cosh, tanh) and backward power of them;