XPJBKC Scientific Calculator, 2 Line Display Math Calculator with 417 Functions and Slide-on Cover, 12 Digits Portable Calculators for Secondary School/Universities/Business/Office

417 Professional Functions: Supports basic arithmetic, statistics, matrix operations, integration, differentiation, and equation solving, with comprehensive advanced mathematical functions ideal for students, teachers, engineers and daily academic applications. Dual-Line Display: Features a 10+2 digit high-definition LCD screen that displays formulas and results simultaneously, with crisp numbers and symbols for effortless reading, helping to minimize errors during calculations and study. Solar & Battery Dual Power Supply: Dual power supply, including solar and button battery, ensures stable and uninterrupted operation. The scientific calculator is energy-saving and reliable for exams, classroom learning and daily long-term use. Responsive Buttons: High-quality plastic keys provide sensitive and precise input. The sturdy ABS body, paired with a protective hard cover, guards against scratches and damage for long-lasting durability. Wide Application: Compact and slim design for effortless portability. This math calculator is ideal for algebra, physics, geometry, GCSE, college courses, and professional scientific computing applications.