Multi-purpose compact calculator with fraction calculations and trigonometric functions. Scientific with 10+2 digit high contrast LCD display. Correct order of operations (M, D, A, S). Polar/Rectangular, fraction/decimal conversions. LOG, LN, Inverse Log, Exponential, Hyperbolic functions. One-variable statistics, mean, sum, standard deviation Probability functions, Permutations, Combinations, Factorial , random number generator. Solar Power, No batteries required. Include Calculator and instruction manual, Protective slide on cover.