Wxeadu FX-991EX Scientific Calculator, A Level Maths Calculator with 552 Functions, 10+2 Digits Written Display, Portable Scientific Calculator for Students, Business, Office, Engineering (Blue)

• 📚 Universal 552 Functions: Mastering complex calculations has never been simpler! FX-991EX scientific calculator features an impressive 552 built-in functions, comprehensively covering everything from basic arithmetic to university-level matrix, statistical, and vector operations. It serves as the ideal companion for A-Levels, engineering studies, and professional examinations
• 🖥️ High-Definition Large-Format Display: No more squinting at your calculations! The 10+2 digit large screen clearly displays both formulae and results simultaneously, significantly reducing input errors. FX-991EX scientific calculator design makes extended use more comfortable, markedly boosting learning efficiency
• 🛡️ Included Dedicated Sliding Hard Case: FX-991EX scientific calculator's rigid casing snugly protects the body, effectively preventing scratches and accidental key presses. Easily slips into a schoolbag or pencil case, suitable for classrooms, laboratories, and mobile office scenarios
• ⚡ Responsive, durable keys: FX-991EX scientific calculator employs high-quality plastic keys offering sensitive actuation and clear feedback. Its robust, fatigue-resistant design ensures stable performance even under prolonged, high-frequency use, standing up to exams and demanding workloads
• 🔋 Button Cell Power: Utilises the universal CR2025 button battery for long-lasting, stable power with effortless replacement. Independent of light or sockets, it operates reliably in exam halls, libraries, or outdoors. FX-991EX scientific calculator eliminates battery anxiety

Features - Core Functions: Advanced capabilities including spreadsheet calculations, matrix operations, equation solving, and inequality resolution - Professional Applications: Supports advanced statistical analysis, distribution calculations, ratio computations, and metric conversions - Practical Tools: Built-in scientific constant tables for swift reference - Display Examples: Performs complex operations like data averaging with clear step-by-step visualisation Specifications Colour: Black Dimensions: 17.7 × 8 × 1.5 cm Weight: 148 g Material: ABS Power Source: CR2025 button cell battery Packing List 1× FX-991EX scientific calculator (with CR2025 button cell battery) Notes 1.Avoid subjecting the calculator to severe impacts or drops from heights. Refrain from forceful striking to prevent damage to internal precision components, which may cause malfunction 2.Clean the body and screen with a soft, dry cloth. Do not use chemical cleaners, alcohol, or damp cloths, as these may damage the surface finish and impair display clarity 3.Keep the calculator away from water sources and humid environments. Any liquid ingress may cause circuit short-circuits and permanent damage 4.Do not use or store in environments with extreme heat, humidity, or dust (e.g., inside a car exposed to direct sunlight or near open flames) 5.When replacing batteries, observe correct polarity and use only the specified type. Remove batteries when the calculator is not in use for extended periods 6.When not in use, store the calculator in the supplied sliding protective case and keep it separate from sharp objects to prevent scratches to the screen and body