HP 20s scientific calculator

The HP 20s scientific calculator comes with a built-in library.

- frequently used functions at the touch of a key with the powerful built-in program library
- perfect for finding a root, using curve-fitting programs, calculating Simpson’s Rule of integration, complex number operations, 3x3 matrix operations and quadratic formulas
- great for sine, cosine, tangent, exponential, natural log and antilog functions
- quickly calculates conversions for mass, distance, volume and temperature
- labelling lets you see data values, as in amortisation, at a glance
- 1-line x 12-character LCD for easy viewing
- 10 memory-storage registers

**Specifications:**

- Battery Type - 3 x LR44
- Display - 1 line x 12 char. LCD
- Entry system logic - Algebraic
- Built-in functions - Over 150
- Customisation Method - Keystroke
- Statistical analysis - Cumulative
- Polar/ rectangular and angle conversions
- Base conversions and arithmetic
- Linear regression, combinations, permutations
- SUM x, SUM x 2, SUM y, SUM y 2, SUM xy
- Decimal hrs/hrs.min.sec. conversions
- Trig., Hyperbolic
- Unit conversions