Casio FX-9860GII - SOFTWARE VERSION 2-00 User manual

QUICK START GUIDE
fx-9860GII
www.casioeducation.com
The lkey executes operations. When data is
entered, the lbutton must be pressed to store the
data.
The zkey is used to obtain a fraction bar. To obtain
a mixed number, press Lz.
The Okey will power the unit on. To turn the unit
off, press LO.
The xkey is a toggle key that will change answers
or entered numbers back and forth from decimal to
standard form.
The dkey operates like the back arrow on a web
browser; it will take you back one screen each time
you select it. The dkey will not take you to the icon
menu.
The pkey displays every mode the calculator has.
To select a mode, you may $B to the desired icon
and press lor press the number or letter in the
lower right hand corner of the icon.
The function keys allow you to access the tab (soft
key) menus that will come up at the bottom of the
screen. When an uappears above the ukey,
selecting uwill offer more on-screen choices.
Selecting the RUN-MATRIX icon will allow you to
perform general computations and arithmetic.

fx-9860GII Quick Start Guide
2
Icon Menu Name Description
RUN-MATRIX This icon menu is used for general computations, including absolute value, logs of any base,
summation, derivatives, integrals, and matricies.
STATISTICS This icon menu is used to perform single-variable (standard deviation) and paired variable
(regression) statistical calculations, to perform tests, to analyze data and to draw statistical graphs.
eACTIVITY eActivity allows for the input of text, math expressions, and other data in a notebook-like interface.
Use this mode when you want to store text, formulas, or built-in application data in a file.
SPREADSHEET This icon menu is used for creating spreadsheets.
GRAPH This icon menu is used to quickly draw, store and calculate information of functions. Can graph polar,
parametric, x=, and inequality graphs on the same screen.
DYNAMIC
GRAPH
This icon menu is used to draw multiple versions of a graph by changing certain values in the func-
tion.
TABLE This icon menu is used to store functions, to generate a numeric table of different solutions as
the values assigned to variables in a function change, and to draw graphs.
RECURSION This icon menu is used to store recursive formulas, to generate a numeric table of different
solutions as the values assigned to the variables in a function change, and to draw graphs.
CONICS This icon menu is used to graph parabolas, circles, ellipses, and hyperbolas. You can input a
rectangular or polar coordinate function or a parametric function for graphing.
EQUATION This icon menu is used to solve linear equations with two through six unknowns, and higher-order
equations from 2nd to 6th degree.
PROGRAM This icon menu is used to store programs in the program area and to run programs.
TIME VALUE
OF MONEY
This icon menu is used to perform financial calculations and to create cash flow and other
types of graphs.
DATA
ANALYZER
LINK
This icon menu is used to control the optionally available EA-200 Data Analyzer. For information about
this icon menu, download the E-CON2 manual from http://edu.casio.com.
LINK This icon menu is used to transfer memory contents or back-up data to another unit or PC.
MEMORY This icon menu is used to manage data stored in memory.
SYSTEM This icon menu is used to initialize memory, adjust contrast, reset memory, and to manage other
system settings.
GEOMETRY This icon menu is used to draw, analyze and animate geometric objects.
The following explains the meaning of each icon on the fx-9860GII icon menu

fx-9860GII Quick Start Guide 3
This section is an overview of the RUN-MAT Icon. To select an icon from the icon menu system,
use the !$BN to highlight the desired icon, then press lor press the number/letter in the
lower right corner of the icon. For the RUN menu, press 1to display the initial screen.
Note: All operations in this handout will utilize the “Math” input mode, which allows natural
input and display of certain functions, just as they appear in a textbook. To make sure your
calculator is in “Math” mode, press Lpqdfrom the RUN menu.
3. To change the answer to a decimal approximation, press x. xis a toggle key that will switch
entered data or answers from standard form to its decimal approximation and back.
2. To change the answer, 24
71 , to a mixed number, press LxX.
1. When performing general computations, you can press zto enter fractions and mixed
numbers. To solve the problem, input the following:
• z5$8$+Lz2$1$3l
RUN-MAT

fx-9860GII Quick Start Guide
4
4. To change the displayed number of decimal places, enter the SET UP menu by pressing
Lp. Nto Display, select q(Fix) and enter the desired amount of decimal places followed by
l. For this example, 3 decimal places are used.
Note: Every icon’s SET UP menu is accessed in the same manner.
• LpNNNNNNNNNNNq3ldlx
From the RUN menu, many calculations can be performed by selecting i. For example:
hyperbolic, probability/distribution, numeric (including differential and integration), conversion, engi-
neering, complex number and binary, octal, decimal and hexadecimal calculations.
5. To calculate the number of different arrangements of 10 items when choosing 4 at a time, enter
the following from the RUN home screen:
• iue10w4l
6. To calculate -103+ 2 , enter the following from the RUN home screen:
• iewn10^3$+2l
RUN-MAT

fx-9860GII Quick Start Guide 5
Calculations can be performed with complex numbers and answers can be displayed in a+bi form.
7. To calculate (-3 + 2i ) + 15i; enter the following:
• ie(n3+2q)+15ql
Sigma calculations can also be performed in the RUN menu.
8. To calculate ; enter the following:
• iruea,s-3a,+5$a,$2$6l
RUN-MAT

fx-9860GII Quick Start Guide
6
This section is an overview of the GRAPH Icon and will highlight some basic features of this mode.
To enter the Graph menu, highlight the icon and press lor press 5.
The initial screen is the function/relation editor. Enter a function in Y1 and press lto solve it. To
draw the function, press u(DRAW).
To quickly change your window, you can utilize the Replay arrows. Specic changes can be made
to the viewing window by selecting e(V-Win).
To analyze features of this graph (roots, maximum and minimums, y-intercepts, intersections,
determine coordinates, and integrals), select y(G-Solv).
Note: When the TYPE of graph is changed, it only affects the current line and entries below
it. Functions already stored are unchanged.
1. To draw the graph of the function y = 2x2 - 5x - 3 from the Graph Editor system, input the
following:
• 2fs-5f-3lu
You can change the type of graph (r = polar coordinates, parametric functions, x =, and
inequalities) by pressing e(TYPE), then selecting the corresponding TYPE button. Press $to
begin inputting.
GRAPH

fx-9860GII Quick Start Guide 7
2. q(Root):
5. q(y-calculation): What is the value of ywhen xis -5?
6. w(x-calculation): What is the value(s) of x when y is 1?
7. e(integral): Determine the integral value from (0, 3) for the function Y1= 2x2 - 5x - 3.
Note: As long as the x-value of your vertex is in the viewable domain; you do not need to see
the vertex to calculate the minimum value. However, you can change the viewing window by
selecting e(V-Window) in the graph window.
4. r(y-intercept):
Note: The left-most root will always display rst. To display the next root, simply press $.
3. e(Minimum):
GRAPH

fx-9860GII Quick Start Guide
8
This section is an overview of the TABLE Icon. To select this icon, highlight it and press lor press
7.
Note: Functions previously entered in Graph will appear in Table.
3. However, you can manually enter a number anywhere in the x-column of the table and press l
to see the corresponding y-value (including fractions, decimals, even π). You can insert and
delete rows in this view by pressing e(ROW). This is a quick way to customize your table.
2. The default setting for tables is: X starts at 1, ends at 5, and increases by increments of 1. You
change this by pressing y(SET). When complete, press d, then u(TABL).
TABLE
1. To see a table for the function , highlight Y1: and input the following:
• z2$3$f-4l

fx-9860GII Quick Start Guide 9
4. From the table view screen, you can press y(G-CON) to see a connected plot linear graph or
u(G-PLT) to see a plot graph for the function you entered.
Note: Moving the cursor to a differential coefcient displays “dy/dx” in the top line, which
indicates differential.
If you manually entered values to the previous table that you still want displayed, you can re-enter
them here, then press lto see the graph of that table.
To generate a differential number table, press Lpto enter the SET UP menu for the TABLE
icon and Nto Derivative, select q(On), then d.
6. For this example, enter YI: 3x2- 2 and Y2: x2. Press u(TABL) to view the differential number
table.
5. To see a split screen of your table and graph, press Lpto enter the SET UP menu for the
TABLE icon. Scroll down to Dual Screen, select q(T + G), d, then u(TABL).
TABLE

fx-9860GII Quick Start Guide
10
This section is an overview of the STAT Icon; it will highlight just a few of the features for single-
variable data and paired-variable data. To select this icon, highlight it and press lor press 2.
The initial screen is the List Editor Screen that allows input of statistical data and performs
numerous statistical calculations. To input a list of single-variable data, highlight the rst cell
under List 1 and enter each number followed by l.
2. From this screen you can display various statistical graphs depending on whether you have
single or paired-variable data (scatter-plot, line, normal probability, histogram, median box, mean
box, normal distribution, broken line, and regression: linear, quadratic, cubic, quartic, logarithmic,
exponential, power, sinusoidal and logistic).
1. For this example, input this set of data:
STATISTICS

fx-9860GII Quick Start Guide 11
3. The initial default graph is a scatter-plot. To change the type of graph you would like to use, press
q(GRPH), then u(SET), and arrow down to Graph Type. For this set of data, we will make a
histogram, press u, and then qfor histogram.
6. To delete this set of data, press duntil you return to the initial List Editor screen. Select u for
more options, select r(Del-A), then q(Yes).
5. The following screen shots show one-variable calculations that can be obtained by
pressing q(1-VAR).
4. Press dto return to your list of data, select q(GPH1)lto see your graph.
STATISTICS

fx-9860GII Quick Start Guide
12
7. For paired variable data, use the following:
11. From this screen, select y(COPY) to copy and then paste the regression equation into the
initial Graph screen or select u(DRAW) to show the linear regression.
10. To calculate a linear regression for these data, select w(X) from the rst set of options and
then press qor wfor the preferred form. For this example, we will use y = ax + b.
9. From the scatter-plot screen, pressing q(CALC) will show all the calculations that can be
obtained from this set of data.
8. To see a scatter-plot of these data, you can go through and change GPH 1 back, using the
process above, or select w(GPH 2) from the List Editor screen whose default is also a scatter-
plot.
Enter List 1 rst, and then $to begin entering List 2. The cursor will automatically move to the
beginning of the next list.
STATISTICS

fx-9860GII Quick Start Guide 13
This section is an overview of the EQUATION Icon. To select this icon, highlight it and press lor
press f.
The initial Equation Editor screen has three modes to choose from, Simultaneous, Polynomial, and
Solver; this section will give an overview of each mode.
There are four options at the bottom of the screen, press q(SOLV). The solution to this system is
(1, -1, 2).
Press q(SIML) to select the Simultaneous mode and press w(3) for three unknowns. The
calculator will display a matrix where the coefcients and constants can be entered in, as long as
each equation is in standard form. To enter this system of equations (already in standard form),
input the following:
• 4l1ln 2 ln 1 l
• 1l6l3l1l
• n 5 l4l1ln 7 l
The Simultaneous mode allows you to solve simultaneous linear equations that contain two to six
unknowns.
1. Solve the following system of equations:
EQUATION

fx-9860GII Quick Start Guide
14
Press q(REPT) to edit this problem or continue solving simultaneous equations with three
unknowns. To edit just one of the numbers in the system, arrow to the number to be edited and
press r(EDIT) or highlight the number to be edited and just enter the new number, then press l.
Press duntil the initial Equation Editor screen is displayed. The second mode is Polynomial (w)
and can be used to solve second to sixth degree polynomial equations (in standard form).
2. To solve the equation x3– 2x2– x + 2 = 0, input the following:
• ww1ln2ln1l2lq
4. The default setting is for real numbers; to change the display to a+bi form, press Lpfor the
Equation SET UP menu, highlight Complex Mode, select w(a+bi), d, then q(SOLV).
3. To change the equation to x3+ 2x2+ 3x + 2 = 0, select q(REPT) and change the b- value
to 2, the c-value to 3 and press q(SOLV).
EQUATION

fx-9860GII Quick Start Guide 15
Solver is the third function and allows you to determine the value of any variable in a formula or
equation. You can input any formula exactly as it appears using afor any variables. In this example,
we will solve a linear equation and a formula.
5. To nd the value of x in the following equation, 2(x - 5) = -3x + 2, input the following, starting from
the initial Equation Editor Screen:
• e2(f-5)L.n3f+2lu
Note: Selecting qwill take you back to the previous screen where you can edit and re-solve
the previous equation or begin a new problem.
Note: In the last screen, “Lft” and “Rgt” represent the values of the left and right sides
of the equation using the value of the solution; this is the calculator’s way of checking the
solution.
You can also enter a formula, assign values, and solve for a specic variable using the Solver
function of the Equation Editor.
6. Find the radius (to the nearest hundredth) of a sphere, whose volume is 3705.97 cm3. To enter
the formula , input the following into the calculator:
• qBa2L.z4$3$Lca6^3l
• Highlight V= and enter 3705.97l
• Press u(Solv)
EQUATION

fx-9860GII Quick Start Guide
16
This section is an overview of the CONICS Icon. To select this icon, highlight it and press lor
press 9.
The initial CONICS screen allows you to choose from various conic functions, including rectangular,
polar or parametric form. You may use BN to select the equation of the function in accordance
with the type of graph you want to draw. Once you have chosen the conic function you would like to
graph, enter the coefcients of the function and then press u(DRAW).
You can continue to analyze different areas of this graph and the line of symmetry will continue to
be displayed.
2. For example, you can now examine the line of symmetry for this parabola and the equation of
that line will be displayed. To see the line of symmetry, press w(SYM).
In the Conics modes, when you press y(G-Solv), although you are still graphing a parabola like in
the Graph mode, notice how the vocabulary and options have changed to be conic specic.
1. To view the graph of the conic: y = 2x2 - 5x - 3, select the y = AX2+ BX + C form from the Conics
formula menu. Enter the coefcients and press u(DRAW).
CONICS

fx-9860GII Quick Start Guide 17
NOTES

fx-9860GII Quick Start Guide
18
NOTES

fx-9860GII Quick Start Guide 19
NOTES

fx-9860GII Quick Start Guide
S e e th e c o m p le te lin e o f C a s io c a lc u la to rs
www.casioeducation.com