Product Model: F710Handheld scientific calculator offers a two-line 10+2-digit display, built-in formula, 139 scientific and math functions and 38 built-in formulas. Ideal for algebra I and II, chemistry, geometry, physics, statistics and trigonometry. Functions include chain multiplication,division, constant multiplication,division,percentage calculations, exponential, factorial, hyperbolic, logarithmic, mean, square, standard deviation of population, standard deviation of sample, reciprocal calculations, fraction calculation, angles conversion, DRG mode calculation, trigonometric calculation, coordination conversion, permutations, combinations, correlation coefficient, random number generation, last digit recall and last answer recall. Automatically powers off in seven minutes when not in use. Product Type: Scientific CalculatorNumber of Functions: 139Functions: Chain multiplication,division Constant multiplication,division,percentage calculations Exponential, factorial Hyperbolic Logarithmic Mean Square Standard deviation of population Standard deviation of sample Reciprocal calculations Fraction calculation Angles conversion DRG mode calculation Trigonometric calculation Coordination conversion Permutations Combinations Correlation coefficient Random number generation Last digit recall and last answer recall Calculator Features: Auto Power OFFDisplay Screen: 2 Line x 10 Character - LCDPower Source: SolarBatteryColor: GrayDimensions: 3.20" x 5.90" x 0.80"Weight (Approximate): 4.80 ozPackage Contents: F710 HandHeld Scientific Calculator Quick reference guide Protective hard case Standard Warranty: 1 Year Limited