This is an instruction guide to the Casio fx-991ES/Plus calculator. It gives an overview of the functions of the calculator and presents some exercises to get aquainted with the functions.
Table of Contents
1. Getting Started
2. Equations
3. Significance Figures and Decimal Laces
4. Arithmetic
5. Number Bases
6. Relations
7. Vectors
8. Statistical Functions
9. Calculus
10. Permutation And Combination
11. Matrices
12. Complex Numbers
13. Scientific Constants
14. Unit Conversions
Objectives and Themes
This manual aims to assist students preparing for the West African Secondary Certificate Examination (WASSCE) and those in tertiary institutions in mastering the use of the Casio fx-991ES/PLUS scientific calculator to solve objective questions and verify written paper calculations efficiently.
- Effective navigation and initialization of calculator modes for specific mathematical tasks.
- Step-by-step procedures for algebraic equations, calculus, and matrix operations.
- Statistical data analysis, including mean, standard deviation, and regression.
- Utilizing advanced features like scientific constants, unit conversions, and complex number calculations.
Excerpt from the Book
SIMULTANEOUS EQUATION (EQUATIONS IN TWO/THREE VARIABLES)
To turn on the simultaneous equation function: [MODE] [5]. Option 1 and 2 are the simultaneous equation modes. Select option 1 if the equation has two unknown variables or option 2 if it has three unknown variables. Here we are interested in two unknown variables. The procedure is exactly the same for three unknown variables.
1: [anX + bnY = cn] (Simultaneous Equation In Two Variables)
2: [anX + bnY + CnZ = dn] (Simultaneous Equation In Three Variables)
Example 1
Find the value of x and y in the following equations: 2x + y = 5 and 2x + 2y = 6
a1: Coefficient of x in equation 1 = 2
b1: Coefficient of y in equation 1 = 1
c1: The constant in equation 1 = 5
a2: Coefficient of x in equation 2 = 2
b2: Coefficient of y in equation 2 = 2
c2: The constant in equation 2 = 6
Summary of Chapters
Getting Started: Introduces the fundamental modes and initialization processes for the Casio calculator.
Equations: Explains how to solve simultaneous, quadratic, and cubic equations using the EQN mode.
Significance Figures and Decimal Laces: Details the procedure for adjusting precision in calculation results.
Arithmetic: Covers fractional calculations, percentage operations, surds, indices, and sequence generation.
Number Bases: Describes conversion between binary, decimal, octal, and hexadecimal systems.
Relations: Guides students in completing tables of values for various mathematical relations.
Vectors: Provides instructions for vector arithmetic, including magnitude and dot product calculations.
Statistical Functions: Explains methods for calculating mean, standard deviation, and regression analysis.
Calculus: Outlines numerical differentiation and integration steps.
Permutation And Combination: Shows how to perform combinatorial calculations using standard calculator keys.
Matrices: Demonstrates matrix operations such as determinants, transpose, and transformations.
Complex Numbers: Focuses on arithmetic operations with complex numbers and finding polar forms.
Scientific Constants: Lists the available constants for use in physics and chemistry applications.
Unit Conversions: Provides a reference for converting between diverse units of measurement.
Key Words
Casio fx-991ES/PLUS, Scientific Calculator, WASSCE, Mathematics Education, Simultaneous Equations, Calculus, Statistical Functions, Matrix Operations, Unit Conversion, Vector Arithmetic, Permutation, Combination, Complex Numbers, Regression Analysis, Scientific Constants.
Frequently Asked Questions
What is the primary purpose of this book?
The book is designed as a guide to help students master the Casio fx-991ES/PLUS calculator to increase speed and accuracy in examinations.
Which mathematical areas does the book cover?
It covers a wide range including arithmetic, algebra, vectors, statistics, calculus, matrices, complex numbers, and unit conversions.
Is this book suitable for WASSCE preparation?
Yes, it is explicitly written to assist students preparing for the West African Secondary Certificate Examination.
Do I need to change modes for every calculation?
The book explains that some operations require specific modes (like [MODE] [5] for equations), while others (like simple arithmetic) do not.
How are statistical problems handled?
The guide uses the Statistics mode ([MODE] [3]) to allow for data entry and the computation of values like mean and standard deviation.
What are the key technical features of the Casio fx-991ES/PLUS highlighted?
Key features include mode selection, constant recall, and unit conversion functionality.
How do I solve simultaneous equations with the calculator?
You access the EQN mode ([MODE] [5]) and input the coefficients of the variables as outlined in the specific chapter on equations.
Can the calculator perform matrix transformations?
Yes, by activating the matrix function ([MODE] [6]), users can perform operations like determinants and transformations.
What is the procedure for calculating the dot product of vectors?
The book specifies using the vector option and selecting the dot product command available via the [SHIFT] [7] sequence.
Can this calculator handle complex numbers in polar form?
Yes, it supports conversions between rectangular and polar forms (r < theta) within the Complex number mode.
- Quote paper
- Farouq Sessah Mensah (Author), 2017, Calculator Tutor for Casio fx-991ES/Plus. For the use in Senior High Schools, Munich, GRIN Verlag, https://www.grin.com/document/370209
