Scientific Calculators: Built for advanced mathematics, physics, and engineering. They include functions for trigonometry, logarithms, exponents, and scientific notation.
Graphing Calculators: Feature large screens capable of plotting functions, solving simultaneous equations, and performing complex variable analysis.
Financial Calculators: Tailored for business and accounting professionals, featuring dedicated keys for calculating loan payments, interest rates, cash flows, and amortization schedules.
Key Components
Power Source: Typically powered by solar panels, replaceable batteries, or a combination of both (dual power) to ensure continuous operation.
Display Screen: Standard models feature liquid crystal displays (LCD) displaying a fixed set of digits (e.g., 8, 10, or 12 digits), while scientific models often feature dual-line or dot-matrix displays to show formulas alongside results.
Keypad: Divided into clear functional zones, including a numeric grid, core operational symbols, memory keys (M+, M-, MR), and clear keys (AC for All Clear, or C for Clear).