Casio fx-991 ES Plus 2nd Edition

Description

The Casio fx-991ES Plus 2nd Edition is a non-programmable scientific calculator with 417 functions, featuring a Natural Textbook Display (V.P.A.M.) that shows fractions, derivatives, integrals, and roots as they appear in textbooks. Ideal for engineering and science students, it handles advanced math including matrix, vector, statistics, equation solving, complex numbers, and base-n conversions.

• Functions: 417 (scientific constants, metric conversions, differential/integral calculus).
• Display: 10-digit mantissa + 2-digit exponential display; high-resolution dot matrix.
• Power: Dual-source (Solar + Battery – LR44).
• Design: Updated sleek design with a slide-on hard case; 95g weight.
• Modes: Table, Equation, Matrix, Vector, Complex, Statistics. 
  

• Engineering/Science: Matrix calculations, vector operations, complex numbers, integration, and differentiation.
• Education: Exam-friendly, suitable for school and university levels.
• Units: 40 scientific constants and 40 metric conversions.