Scientific Calculator IPepul 991ES Plus – 417 Functions Solar Power 4 Line Display Purple

IPepul 991ES PLUS Solar PIink Scientific Calculator 1、The calculator can adjust the screen brightness using the following buttons. SHIFT -MODE (SETUP) -（down arrow symbol）-6(Continue). SHIFT-9(CLR)-3(All)=(Yes) 3.The calculator is rich in functions, please read the User’s Guide before use. Additionally, you can adjust the brightness using buttons, according to your personal preferences and environmental needs. COMFORTABLE ABS KEYS This calculator features buttons made of comfortable ABS material, providing an excellent tactile experience. SOLAR POWER & BATTERY This calculator is powered by both solar energy and battery. Solar energy provides sustainable power, while batteries serve as a backup power source when needed. It also supports complex number calculations, matrix calculations, vector calculations, etc. and can meet the various scientific and engineering calculation needs . Large Screen Four-Line Display: The scientific calculator adopts a four-line large screen design, which is convenient for users to read. It also supports the natural display, which can directly display the input and output of mathematical formulas on the screen, making complex calculations more intuitive. The key SHITT -MODE (SETUP) DOWN -6( LEFT Continue RIGHT ). Dual Power: This calculator has a built-in solar panel and durable battery, which can be used continuously for many years in indoor and outdoor environments, reducing the frequency of battery replacement and making it more economical. This also makes it the best choice for people who need to use it for a long time, such as school supplies, high school students, accountants, and non-programmable calculators . Multi-Functional Keyboard: The calculator has a keyboard with many scientific symbols and function keys built-in, making it easy to perform various calculations and functions. Especially for people who need to perform scientific calculations frequently, this keyboard design can greatly improve their calculation efficiency, such as teachers, engineers, college students, nurses, and accountants . The Best Gift: This calculator is very suitable for students in elementary school, junior high school, high school, college, engineers, nurses, and teachers, etc.