This Casio FX-115ESPLUS2 Scientific Calculator is a versatile and powerful tool for students and professionals alike. With a natural textbook display, you can easily input and view complex mathematical equations. This handheld calculator runs on battery power and features an LCD display for easy readability. It is loaded with features such as calculus and programmable functions to make your life easier. Whether you are working in an office or studying for an exam, this calculator is a must-have for anyone who needs to perform complex calculations on a regular basis. Unopened package.