The all-purpose Casio FX260SLR Solar Scientific Calculator offers fraction calculations, trigonometric functions and more. Featuring 1- and 2-variable statistics, mean/sum/elements and standard deviation, the Casio Scientific Calculator is ideal for any math student. Offering scientific notation and polar/rectangular conversions, this Casio Solar Calculator can perform almost all your calculations. The Casio FX260SLR Solar Scientific Calculator includes a slide-on hard case for extra protection. Get the scientific calculator you need with the Casio FX260SLR Solar Scientific Calculator.