Casio FX-220 Pocket Scientific calculator Black calculator

FX-220 - 139 functions.
- Display: 10 digit mantissa + 2 digits exponential.
- Energy supply: Two button -type batteries (LR44).
- Comes with new slide-on hardcase.
- 18 levels of parenthesis.
- Fraction calculations.
- Percentage calculations.
- Sexagesimal to decimal conversion and vice versa.
- Trigonometric and invers trigonometric functions.
- Hyperbolic and invers hyperbolic functions.
- Common and natural logarithms.
- Exponents.
- Square roots, Cube root, Square, Reciprocal and Factorial.
- Random numbers.
- Rounding.
- Engeneering notation.
- Specification of the number of decimal places or significant digits (FIX, SCI).
- Exponential Didisplay format (Norm1/2).
- Polar/Rectangular conversions.
- Permutation and combination.
- Standard deviation.
- 1 memory.
- Plastic keys.