Truly
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- Scientific: Supports complex calculations such as roots, powers, logarithms, trigonometric functions, and statistics. Ideal for high school students, university students, and STEM professionals.
- Receipt Paper Roll: It has a paper roll for printing calculations and results. Useful for accounting offices and professional use where a record of calculations is needed.
- Simple: Supports basic operations: addition, subtraction, multiplication, division, and percentages. Ideal for everyday use and elementary school students.
- Accounting: Designed for financial and accounting calculations, such as interest, compound interest, present and future value, ROI. Useful for accountants, economists, and bank employees.
- Graphing: Features a large display capable of showing function graphs and value tables. Ideal for advanced mathematics, engineers, and STEM students.
- Solar/Battery: They feature a solar panel that utilizes light and a backup battery for low-light conditions.
- Battery: They operate exclusively on batteries, suitable for portable use.
- Electric: They are connected to a power outlet with a cable, ideal for professional/stationary use (often desktop models with a printer). Some also have a backup battery for memory protection.