Casio Fx-115ES PLUS Manuel utilisateur

QUICK START GUIDE

2nd EDITION

fx-115ES PLUS

www.casioeducation.com

Press Cto clear out anything typed or the entire

screen.

Press zto input a negative value or variable.

To enter a fraction, press aand enter your

numerator and denominator. The nkey toggles your

calculation results between Standard and Decimal

forms.

The wkey allows you to choose between the 11

different modes on the calculator. qw(SETUP)

allows you to make changes to the calculator settings.

Use the Wkey to turn the calculator on, and press

qC(OFF) to power the unit down.

fx-115ES PLUS 2nd Edition Quick Start Guide

MENU NAME DESCRIPTION

COMP This mode performs general calculations.

CMPLX This mode performs complex number calculations.

STAT This mode performs statistical and regression calculations.

BASE-N This mode performs calculations involving speciﬁc number systems (binary, octal, decimal, & hexadecimal).

EQN This mode solves equations.

MATRIX This mode performs matrix calculations.

TABLE This mode generates a numerical table based on one or two functions.

VECTOR This mode performs vector calculations.

INEQ This mode solves inequalities.

VERIF This mode veriﬁes a calculation.

DIST This mode performs distribution calculations.

The following explains the meaning of each mode on the fx-115ES Plus 2nd Edition:

fx-115ES PLUS 2nd Edition Quick Start Guide 3

To calculate and solve basic expressions, press w1to enter COMP mode.

To make any changes to the calculator settings, press qw(SETUP).

Inputting a Fraction & Converting to Decimal Form:

1. To solve , press

a7$8$+qa2$3$11=.

2. To view the solution as a decimal, press n.

Note: press nagain to see the entire decimal answer. Pressing

once more will display the fraction solution again.

To Find the Remainder of a Division Problem:

1.Tondtheremainderof7dividedby5,press

7Qa5=.

COMP MODE

fx-115ES PLUS 2nd Edition Quick Start Guide

COMP MODE

Absolute Value:

1.Tondtheabsolutevalueof-4,press

qcz4=.

Exponents:

1. To evaluate 34, press 3^4=.

Roots:

1. To calculate the square root of 25, press

s25=.

2.Tocalculatethecuberootof64,press

q^3$64=.

Storing Variables:

To store a value for any variable, press qJfollowed

by a variable, A – F. In this example, we will store a

value of 1 for the variable A.

1. Press 1qJz.

Note: When you store the value for the variable, you do not need

to press the Qkey prior to pressing the variable key.

fx-115ES PLUS 2nd Edition Quick Start Guide 5

COMP MODE

Calculating Expressions:

The rkey allows you to enter an expression with

variables, assign values for each variable and then

automatically calculate the expression, without having to

storevaluesforthevariablerst.

1. Enter the expression, 3A + B, by pressing

3Qz+Qx.

2. Press r.

3. Enter 5 for Aby pressing 5=.

4.Enter10forBby pressing 10=.

5. The values of A and B can be used to solve additional

expressions, without using r.

fx-115ES PLUS 2nd Edition Quick Start Guide

Solving Equations (SOLVE):

SOLVE uses Newton’s method to approximate the

solution of equations. SOLVE can only be used in COMP

mode.

Solve y = ax2+ b for x, when y = 0, a = 1, and b = -2.

1. Enter the equation by pressing Qn(Y)

Qr(=)Qz(A)Q)(X)d+Qx(B).

2. Press qr(SOLVE) to enter the SOLVE feature.

3. Enter the value for yby pressing 0=.

4.Enterthevalueforaby pressing 1=.

5. Enter the value of bby pressing z2=.

6. Enter an initial value for x, for this example, we will

enter 1, by pressing 1=.

7.ToexitSOLVE,pressC.

COMP MODE

fx-115ES PLUS 2nd Edition Quick Start Guide 7

Inputthefollowingdataandndthelinearregression.

(170,66) (173,68) (179,75)

Entering Data:

1. To enter the data points above, press

w32(A+BX).

2.Enterthex-valuesrst,pressing=after each value.

170=173=179=

3. Use the arrows to move to the top of the y-column

and enter the y-values, pressing =after each value.

66=68=75=

STAT MODE

To start a statistical calculation, press w3to enter STAT mode and use the screen that appears

to select the type of calculation you want to perform.

Note: When you want to change the calculation type after entering STAT mode, press q1

(STAT/DIST)1(Type) to display the calculation type selection screen.

fx-115ES PLUS 2nd Edition Quick Start Guide

STAT MODE

Finding a Regression:

1.Tondtheregressionequation,pressCto clear

the screen.

2. Press q1to display the Statistics Menu.

3. Press 5(Reg)tondthecoefcientsforthelinear

regression equation.

4.Press1(A)=tondthevalueofA.

5.TondthevalueofB, repeat the process.

Press q152(B)=.

6.Thevaluesofthecorrelationcoefcient(r), the estimated value of X , and the estimated value

of Y can also be found.

fx-115ES PLUS 2nd Edition Quick Start Guide 9

EQN MODE

Example 1:

1. Press 1to select a simultaneous linear equation

with two unknowns.

2.Enterthecoefcientsforeachtermineachequation

by pressing 1=2=3=2=3=4=.

3. Press =to solve for the variables.

4.PressRto see the solution for y.

5. To solve additional simultaneous equations with

two unknowns, press CC.

Equation Mode can be used to solve simultaneous linear equations with two or three unknowns,

quadratic equations, or cubic equations. Press w5to enter EQN mode and press the

corresponding number for the desired equation type.

fx-115ES PLUS 2nd Edition Quick Start Guide

Example 2: Solve 2x2–3x–6=0.

1. To choose a different type of equation to solve,

press w5to return to the initial Equation screen.

2. Press 3to select a quadratic equation.

3.Enterthecoefcientsofeachtermandtheconstant

by pressing 2=z3=z6=.

4.Press=to solve for the roots and the minimum.

5. Press Rto see the additional information

EQN MODE

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