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HP 20S Scientific and Statistical calculator with manual and pouch.
Condition is exceptional
Working 100%
The HP 20S is an algebraic entry scientific calculator with an LCD display, algebraic logic, and a 12-digit display precision. Key features include 10 data registers, 99 program lines, keystroke programming, statistical and probability functions, unit and base conversions, and six built-in programs for tasks like root finding and numerical integration. Powered by three LR44 batteries, it offers features like trigonometric, hyperbolic, and polar/rectangular conversions and is suitable for high school students.
Display & Keyboard
Display: Large, 12-character, 1-line LCD seven-segment display.
Keys: 37 keys, with a blue shift key and alpha keys for enhanced functions.
Logic: Algebraic, using infix notation for calculations.
Memory & Programming
Registers: 10 data registers for storing values.
Program Lines: Supports 99 lines of keystroke programming.
Built-in Programs: Includes six libraries with programs for:
Root Finder
Numerical Integration
Complex Number Operations
3x3 Matrix Solutions
Quadratic Equation Solver
Curve Fitting
Functions
Mathematical: Trigonometric, hyperbolic, powers, logarithms, roots, pi, factorials, combinations, and permutations.
Statistical: One- and two-variable statistics with linear regression.
Conversions: Unit conversions (e.g., lbs to kg), base conversions (binary, octal, decimal, hexadecimal), and polar/rectangular conversions.
Power & Physical
Power Source: Requires 3 x LR44 1.5V batteries.
Dimensions & Weight: Measures approximately 7.87 x 14.73 x 1.52 cm and weighs around 295 g.
Case: Comes with a soft faux leather case and has rubber feet for stability.
