Casio fx-9860GII Graphing Calculator The Casio fx-9860GII was a popular graphing calculator known for its ease of use, fast processor, and backlight. It features a large, high-contrast "Natural Textbook Display". This displays mathematical expressions such as fractions, roots, and exponents as they appear in a textbook, improving comprehension and efficiency. Graphing Capabilities: The calculator supports graphing rectangular, polar, parametric, and inequality functions, as well as finding roots, minimums, maximums, and intersections. Advanced Statistics: The device can perform extensive statistical analyses, regression calculations, and various tests (Z-test, t-test, etc.) and display the results in various graphs, such as bar charts and pie charts. Connectivity: The calculator features a USB port for high-speed data communication with a computer or another calculator. The calculator will be carefully packed.