Sharp
EL9900
manual
EL-9900
Pie Charts and Proportions
Access the Solver feature
Using this Handbook
Change to parametric mode
Page 1
Graphing Calculator
EL-9900
Handbook Vol. 1
Algebra
For Advanced Levels
For Basic Levels
Page 1
Page 2
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Page 2
Contents
EL-9900
Contents
Always read Before Starting
Read this first
Introduction
Using this Handbook
Example
Fractions and Decimals
Before
Pie Charts and Proportions
Slope and Intercept of Linear Equations
1Enter the equation y = x for Y2
Parallel and Perpendicular Lines
2View the graphs
Slope and Intercept of Quadratic Equations
1Change the equation in Y2 to y = x 2+2
1Access the Solver feature This screen will appear a few
4Enter the values L=15,000, I=0.09, N=48
Access the Solver feature
200 15 π
10π
1Access the Solver feature
5Solve for the height and enter a starting point
Graphing Polynomials and Tracing to Find the Roots
1Move the tracer near the left-hand root
= x 4 + x 3 5x 2 3x +
Graphing Polynomials and Jumping to Find the Roots
Find the next root
Solving a System of Equations by Graphing or Tool Feature
1Access the Tool menu. Select the number of variables
Entering and Multiplying Matrices
1Multiply the matrices a and B together at the home screen
Solving a System of Linear Equations Using Matrices
2Calculate B-1C
Solving Inequalities
EL-9900 Graphing Calculator
2x 5 ≥
Solving Double Inequalities
= 2x 5
= 2x 5 and y = 7 intersect at 6,7
2x + y ≥
+ y ≤
+ y ≤
+ 2y ≤ 1 y ≤ +y ≥ 4 y ≥ 4 x
+ 2y ≤ 1 x 2 + y ≥
Continuing key operations omitted
If x ≥
Slope and Intercept of Absolute Value Functions
3View the graph
Solve an absolute value equation 5 4x =
Solving Absolute Value Equations
= 10, y =
Solving Absolute Value Inequalities
2nd F Calc 2 x = = 9.999999999 Note
+3 1+3
Evaluating Absolute Value Functions
Math
Graphing Rational Functions
+ 1x
Solving Rational Function Inequalities
= y 2 + 2 = y = +√ x +
Graphing Parabolas
Change to parametric mode
Graph x 2 2x + y 2 + 4y =
Graphing Circles
2x + y 2 + 4y =
2x + y+22 =
For Y1 = Y1 2 for Y2, and y = -Y1 -2 for
Graphing Ellipses
View the graph
Graphing Hyperbolas
Zoom out the screen
Key pad for the Sharp EL-9900 Calculator
Key pad for the Sharp EL-9900 Calculator
Sharp Graphing Calculator
Step
Sharp Corporation OSAKA, Japan
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