FX-991ES Plus-2nd Edition Review

Overview

Key Features

• Natural Textbook Display (Natural V.P.A.M.)
• 417 Functions
• Dual Power (Solar and Battery)
• Equation Solver (Quadratic, Cubic, Simultaneous)
• Matrix and Vector Calculations
• Complex Number Calculations
• Numerical Integration and Differentiation
• Statistical Calculations (Standard Deviation, Regression Analysis)
• Base-N Calculations
• Ratio and Inequality Functions

Reasons to Buy

• Excellent Natural Textbook Display for clear input and output of expressions.
• Comprehensive set of 417 functions covers most high school and early college math/science needs.
• Dual power source (solar and battery) ensures reliable operation.
• User-friendly interface and intuitive key layout.
• Affordable price point for its feature set.
• Approved for use in many standardized tests (check specific test regulations).

Reasons to Avoid

• Lacks graphing capabilities, which are essential for higher-level math and science courses.
• No programming functionality for custom routines.
• Does not feature a Computer Algebra System (CAS).
• Not suitable for advanced engineering or university-level mathematics requiring graphing or CAS.

Technical Specifications