Casio FX-82ES Plus 2nd Edition is an enhanced version of the popular FX-82ES Plus scientific calculator. Here's a more detailed explanation of its features: Functions: This calculator provides a wide range of mathematical functions, including basic arithmetic operations (addition, subtraction, multiplication, division), trigonometric functions (sine, cosine, tangent), logarithmic and exponential functions, fraction calculations, and statistical calculations (mean, standard deviation, regression analysis). Dual-Powered Operation: The calculator can be powered by both solar energy and battery, ensuring reliable operation even in low-light conditions. The solar panel helps to conserve battery life, making it an environmentally friendly option. Large Display: The calculator features a large, easy-to-read display, making it suitable for viewing complex mathematical expressions and results clearly. Ergonomic Design: With its ergonomic design and intuitive layout of buttons, the calculator is comfortable to hold and easy to use for extended periods. Durable Construction: Built to withstand daily use, the Casio FX-82ES Plus 2nd Edition is durably constructed, making it suitable for various environments such as classrooms, offices, and on-the-go use. Approved for Exams: It's worth noting that this calculator is often approved for use in standardized exams, including SAT, ACT, and AP exams, making it a popular choice among students.