Casio FX-991MS 2nd Edition

The Casio FX-991MS 2nd Edition is an advanced scientific calculator designed for mathematics, science, and engineering applications. With 401 built-in functions, it supports complex calculations including equation solving, integration, differentiation, matrix calculations, vector calculations, complex numbers, statistics, regression analysis, and base-n conversions. Its 2-line S-V.P.A.M. (Super Visually Perfect Algebraic Method) dot matrix display allows users to view expressions and results clearly in textbook-style format. Equipped with 9 variable memories, replay functions, scientific constants, and dual solar & battery power, this calculator is ideal for students, teachers, engineers, and professionals. It comes with a protective slide-on hard case for durability and portability.