Casio FX 991 CW (Italian Model) Scientific Calculator, 540 Functions and Natural Display

High Resolution Display to view more data like spreadsheets and 4x4 matrix calculations Natural Text book display - symbols and numbers appear just as they do in textbook Numeric Integration/Differentiation. 552 functions Simultaneous and Polynomial Solver International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.