CASIO FX-991ES Scientific Calculator
The CASIO FX991ES Plus Scientific Calculator has 417 functions and features a revolutionary Natural Textbook Display - allowing you to enter expressions as seen in text books. With advanced mathematical functionality, the FX991ES is ideal for both students and professionals. This stylish calculator features a slide-on case.
AS Level, A Level, GCSE
number of functions:
Variable Memory, Polynomial Equations, Simultaneous Equations, Scientific Constants, Trigonometric Functions, Exponential/ Logarithmic Functions, Equation Solver, Base-n Calculations, Hyperbolic Functions, Statistical Calculations (Standard Deviation), Sexagesimal Functions, Coordinate Conversion, Matrix/ Vector Calculations, Ratio Calculations, Metric Conversions, Table Function, Numerical Differentiation, Statistical Calculations (Regression Analysis), Fraction Calculations, Power Functions, Complex Number Calculation, Permutation/ Combination, Recurring Decimal, Prime Factorization, Inequalities
1 x LR44 Battery (Included)
From 11 years
24.2 x 15.4 x 3.0 cm (9¾ x 6¼ x 1¼ inches)
Saver Delivery: Yes
1st Class Delivery: Yes
Courier Delivery: Yes
Store Delivery: Yes
Prices are for internet purchases only. Prices and availability in WHSmith Stores may vary significantly
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