Casio Fx-9860

In the world of graphing calculators, two giants have historically dominated the conversation: Texas Instruments and Casio. While Texas Instruments often commands the American market with the ubiquitous TI-84 series, Casio has cultivated a fiercely loyal following elsewhere with devices that offer high-level functionality at a fraction of the cost. Standing at the pinnacle of Casio’s legacy is the Casio fx-9860 series .

Though it has since been succeeded by the fx-CG series (Prizm), the fx-9860 remains one of the most reliable, efficient, and widely used graphing calculators in educational history. For students, engineers, and surveyors who prioritize battery life, speed, and raw calculation power over fancy color screens, the fx-9860 is still the weapon of choice. casio fx-9860