Casio Fx-991cw Scientific Calculator Original- Black

Summary:

•Product Type: Scientific Calculator Model: FX-991CW 10 2 digits Display Type: Natural Textbook display Power Supply: Solar Battery Natural Textbook display - Input and display fractions, powers, logarithms, roots, and other mathematical formulas and symbols just as they appear in textbooks. Both Solar and Battery powered. Solar powered when light is sufficient, battery powered when light is insufficient. 540 Functions. Battery - Solar and Battery • Plastic keys • Comes with slide on hard case Dedicated keys to convert polar coordinates to rectangular coordinates and vice versa. Specifies degrees, radians, grads as the angle unit for value input and calculation result display. Aids in sexagesimal calculations with respect to decimal conversion.

• Basic Calculation

• Bracket Calculation

• Fraction Calculation

• Degree, Minute, Secound (Sexagesimal) Calculations

• Reciprocal Calculation

• Percent Calculation (scientific calculator function)

• Ratio calculation

•Factorial Function

• Irrational number calcuation

• Rounding Function

• Transcendental number: e

• Base-n calculation

• Logical Operators

• Complex number calculation

• Matrix calculations

• Vector calculations

• Continuous Calculation

• Replay Function

• Multi-replay Function

• UNDO

• SOLVE Function

• Independent Key x

• Absolute Value Calculation

• Square and square root (x2/√)

• Power and radical root (xy/x√)

• Trigonometric, inverse trigonometric (sin/cos/tan/sin–1/cos–1/tan–1)

• Hyperbolic, inverse hyperbolic (sinh/cosh/tanh/sinh–1/cosh–1/tanh–1)

• Exponential, logarithmic (log, ln, 10x, ex)

• Base specified logarithmic

• Coordinate Conversion

• Combination / Permutation

• Prime Factorization

• Random Number Generation

• Random Integer Generation

• Summation

• Scientific Constants

• Metric conversion function.

Colour-Black

Country of Origin-Japan

Number Of Digit-12 Digit

Features- Auto Power Off, Dual Power, On Programmable, On Graphing, Negative Sign, Power Off

Dimensions-162 x 77 x 10.7mm.

Model-Casio FX-991CW.

Display Type-Natural textbook display

Power Type-Solar and Battery.

Material-Plastic.

Battery Type-Solar Powered.

Product Weight 95 Grams.

Number of Functions-540 Functions

Display Size-Large.

Country of Assemble-Thailand.

The Casio fx-991CW is the perfect tool for students and professionals looking to tackle complex calculations with ease. This advanced scientific calculator comes packed with 552 functions, offering everything you need for mathematics, physics, engineering, and beyond.

With its natural textbook display, you can input and view expressions just as they appear in textbooks, making it easier to understand and verify your work. The equation solver, matrix operations, and vector calculations will help you breeze through challenging problems, while the built-in statistics mode simplifies data analysis.

Key Features:

552 Functions: From basic arithmetic to advanced calculus and statistics.

Natural Textbook Display: See your calculations in a format that’s easy to follow.

Spreadsheet Mode: Manage data directly from your calculator.

Exam Mode: Ensure compliance during tests.

Solar & Battery Powered: Never worry about running out of power when you need it most

The Casio fx-991CW is a highly versatile scientific calculator capable of handling a wide range of calculations, equations, and vector operations. Here’s a breakdown of what you can do with it:

1. Algebraic Calculations

Basic Arithmetic: Addition, subtraction, multiplication, and division.

Fractions: Input, simplify, and calculate fractions.

Powers and Roots: Square, cube, nth powers, and their respective roots.

2. Advanced Mathematical Functions

Exponential & Logarithmic Functions: Calculating exponentials, logarithms (base 10 and natural log), and inverse functions.

Trigonometric Functions: Sine, cosine, tangent, and their inverses, in both degrees and radians.

Hyperbolic Functions: sinh, cosh, tanh, and their inverses.

Complex Numbers: Perform arithmetic operations and conversions (rectangular ↔ polar coordinates).

**3. Equation Solving

Quadratic & Cubic Equations: Solve quadratic (ax² + bx + c = 0) and cubic (ax³ + bx² + cx + d = 0) equations.

Polynomial Equations: Solve up to 4th-degree polynomial equations.

Simultaneous Equations: Solve systems of linear equations with two or three unknowns.

4. Vector Calculations

Vector Operations: Addition, subtraction, and scalar multiplication of vectors in 2D and 3D space.

Dot Product and Cross Product: Calculate the dot product (scalar product) and cross product (vector product) of vectors in 3D space.

Magnitude of Vectors: Find the magnitude (length) of vectors.

5. Matrix Calculations

Matrix Operations: Perform addition, subtraction, and multiplication of matrices (up to 3×3).

Determinant & Inverse: Calculate the determinant and inverse of a matrix.

Matrix Transpose: Quickly transpose matrices.

6. Calculus Functions

7. Statistical Calculations

8. Spreadsheet Mode