The Casio fx-991ES Plus 2nd Edition is a non-programmable scientific calculator designed for students and professionals who need fast, accurate, and versatile calculation capabilities. With a total of 417 functions, natural textbook display, and solar + battery power, this sleek calculator is ideal for engineering, mathematics, physics, and general academic use.
Top Highlights
Brand: Casio
Model: fx-991ES Plus 2nd Edition
Calculator Type: Scientific (Non-Programmable, Non-Graphing)
Display: 10+2 Digit Natural Textbook Dot Matrix Display
Functions: 417 Built-in Functions
Power Source: Solar + Battery (Approx. 3-Year Battery Life)
Memory: 9 Variables, Independent Memory, Answer Memory
Dimensions: 161.5 × 77 × 11.1 mm
Weight: 95g
Accessories: Includes Hard Case
Auto Power Off: Yes
About this item
✅ 417 Functions Built-In – Supports basic to advanced mathematics, including algebra, calculus, statistics, matrices, vectors, complex numbers, and more.
✅ Natural Textbook Display – Shows expressions and results exactly as they appear in textbooks for intuitive learning and fewer mistakes.
✅ Advanced Scientific Features – Includes calculations for differential, integration, factorial, coordinate conversion, and logical operators.
✅ Base-n & Complex Calculations – Perform binary, octal, decimal, and hexadecimal calculations, along with complex number operations.
✅ Matrix & Vector Calculations – Solve problems involving 3×3 matrices and 3-dimensional vectors with ease.
✅ Replay & Multi-Replay Functions – Quickly review and edit previous calculations to save time and improve efficiency.
✅ SOLVE & CALC Functions – Easily find variable values in equations and perform complex calculations step-by-step.
✅ Durable & Lightweight Design – Compact size (161.5 × 77 × 11.1 mm) and lightweight (95g) make it easy to carry anywhere.
✅ Solar + Battery Powered – Dual power source ensures long-lasting use and reliability during exams or long study sessions.
✅ Comes with a Protective Hard Case – Keeps the calculator safe during transport and everyday use.
