Casio fx-991ES Plus scientific calculator

The Casio fx-991ES Plus is a scientific calculator with a range of features ideal for students, scientists, and engineers. It features a large display, user-friendly keyboard and a variety of functions which simplify calculations of trigonometric functions, logarithms, statistics, and more. Key features include multi-line display with 4 lines, full graphic mathematical function plotting, table functions, equation solving, and matrix functions.