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CITYDEN ELECTRONICS
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The FX-991MS PLUS 2nd Edition is a scientific calculator designed for students and professionals who need advanced mathematical, engineering, and scientific functions without programmability.
It features Natural Textbook Display (Natural-V.P.A.M.), which presents mathematical expressions such as fractions, surds, logarithms, integrals, and derivatives exactly as they appear in textbooks, making it easier to read and understand results.
Multi-Replay Function – allows you to go back and edit/recalculate previous equations.
Multi-Functionality – supports calculations in:
Algebra (fractions, surds, exponents)
Calculus (differentiation, integration)
Statistics (mean, standard deviation, regression)
Complex numbers
Matrix and vector calculations (up to 3×3 matrices and 3D vectors)
Equation/Function Solver – solves polynomials and simultaneous equations.
Engineering Symbols – convenient notation for engineers.
Two-Way Power – solar-powered with battery backup.
Durable & Lightweight – suitable for daily academic or field use.
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