The Casio fx-991ES PLUS is a powerful, non-programmable scientific calculator ideal for students, engineers, and professionals. It features 417 functions, including advanced calculations like integration, differentiation, matrices, and complex numbers, all displayed in natural textbook format (Natural-V.P.A.M.). This allows users to input and view expressions just as they appear in textbooks, making it intuitive and easy to use.
Key Features:
417 Functions including:
Algebra, Trigonometry, Calculus
Matrix and Vector Calculations
Complex Numbers
Equation Solving
Scientific Constants
Natural Textbook Display (Natural-V.P.A.M.) shows fractions, square roots, and integrals as they appear in textbooks
Two-Line Display
Solar & Battery Powered (Dual Power)
Multi-replay function go back and edit previous steps
Plastic keys for durability
Easy Menu Navigation
Ideal For:
High school and university students
Engineering and science students
Professional use in technical fields
Power Source:
Solar power with battery backup (LR44)
Box Includes:
Casio fx-991ES PLUS Calculator
User ManualThe Casio fx-991ES PLUS is a powerful, non-programmable scientific calculator ideal for students, engineers, and professionals. It features 417 functions, including advanced calculations like integration, differentiation, matrices, and complex numbers, all displayed in natural textbook format (Natural-V.P.A.M.). This allows users to input and view expressions just as they appear in textbooks, making it intuitive and easy to use.
Key Features:
417 Functions including:
Algebra, Trigonometry, Calculus
Matrix and Vector Calculations
Complex Numbers
Equation Solving
Scientific Constants
Natural Textbook Display (Natural-V.P.A.M.) shows fractions, square roots, and integrals as they appear in textbooks
Two-Line Display
Solar & Battery Powered (Dual Power)
Multi-replay function go back and edit previous steps
Plastic keys for durability
Easy Menu Navigation
Ideal For:
High school and university students
Engineering and science students
Professional use in technical fields
Power Source:
Solar power with battery backup (LR44)
Box Includes:
Casio fx-991ES PLUS Calculator
User Manual
