Professional grade scientific calculator with 240 scientific functions. Easily handles 1 and 2 variable statistical calculations, three angle modes (degrees, radians, and grads), and scientific/engineering notation modes 12-digit widescreen HD display. 2-line display shows inputs and results at the same time. Works efficiently and makes no mistake Meets the ergonomics design and offers a comfortable grip. Responsive buttons, clear numbers, and scratch-proof Solid sliding protective case covers either side of the calculator. Protects buttons and the device body Package includes: Scientific Calculator*1, instructions