Track tasks with progress rings that update as work is completed. Add notes, links, and photos to each task. Set custom due dates and control reminder frequency. Use a built-in focus timer for concentration.
Calculate interest with precise results. Input principal, monthly contribution, annual rate, and years to compute accumulation. Display results instantly with clear visual output. Track growth over time with detailed breakdowns.
Control access to a building with authorized phone calls or IC cards. Set door passwords and up to 200 authorized numbers. Includes a GSM module for communication. Features a user-friendly interface with LED display and keypad.
Handles large integers and decimal numbers. Perform high-precision addition, subtraction, multiplication, and division. Save and recall previous calculations. Convert between formats.
