Casio Fx-991MS Scientific Calculator (Battery/Solar)

• Casio Fx-991MS scientific calculator with dual power (battery and solar). • Features 403 functions, including advanced calculations for statistics, calculus, and complex numbers. • Natural V.P.A.M. display shows expressions and results as they appear in textbooks. • Ideal for secondary school, university students, and professionals requiring advanced mathematical functions. • Durable construction with a protective slide-on cover. • Powered by a button-cell battery and solar cell for extended use. • Includes essential functions like trigonometry, logarithms, and equation solving.