- [401 Functions Scientific Calculator] This scientific calculator is equipped with 401 essential functions, making it a vital tool for students from middle school to college. Key capabilities include fraction operations, matrix calculations, statistical analysis, calculus, complex number calculations, equation solving, standard deviation, vector calculations, and permutations and combinations. It covers a comprehensive range of mathematical needs for coursework and exams. Refer to the included instructions for guidance on utilizing these functions effectively. - [Adjustable Brightness] The screen brightness can be easily adjusted to enhance visibility. Dimming the display reduces eye strain, while increasing brightness ensures clear, legible results, ultimately boosting calculation efficiency. - [2-Line Display] The calculator features a 2-line display that allows users to view both input expressions and results simultaneously. This design simplifies the review process, enabling students to track their calculations easily and ensure accuracy. - [Dual Power Source] Equipped with both solar and battery power options, this calculator offers uninterrupted functionality. Its dual power source promotes energy efficiency and environmental sustainability, allowing users to rely on it in various light conditions. Use Scenarios: 1. Ideal for high school and college students tackling advanced mathematics and science courses, ensuring they have the tools needed for success. 2. Perfect for professionals and researchers conducting statistical analysis or complex calculations in their fields. 3. Useful for educators when demonstrating mathematical concepts in classroom settings, enhancing student engagement and understanding.