Casio FX-CG10 Manual de usuario

The status bar will display messages and current status like battery

level, angle mode, fraction results, complex mode, or input/output

settings.

Select the desired icon by highlighting it and pressing lor just

press the number or letter in the lower right corner.

The function keys allow you to access the tab (soft key) menus that

will come up at the bottom of the screen. When an (>) appears

above the ukey, selecting uwill offer more on-screen choices.

The pkey displays every mode the calculator has. To select a

mode, you may $Nto the desired icon and press lor press

the number or letter in the lower right hand corner of the icon.

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 Lkey activates any function displayed on or above the cal-

culator buttons that is yellow. For example, to nd the square root of

number, you would need to press L, then s.L5gives

you access to on-screen color formatting.

The Okey will power the unit on. To turn the unit off, press the

yellow Lkey, then Okey.

The akey activates any function displayed on or above the

calculator buttons that is in red. For example, to type the letter A,

press a, then f.

The lkey executes operations. When data is entered, the l

button must be pressed to store the data.

fx-CG10 PRIZM

Quick

Reference Guide

White gradient to 50% transparency.

Note this logo is on separate layer from background

Getting Started with the fx-CG10

ICON Menu

Name Description

RUN

MATRIX

This icon menu is used for general computations, including binary, octal, decimal, and hexadecimal

functions and matrices.

STATISTICS This icon menu is used to perform single-variable (standard deviation) and paired variable (regression)

statistical calculations, to perform test, to analyze data and to draw statistical graphs.

eACTIVITY eActivity lets you input 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 le.

SPREAD-

SHEET This icon menu is used for creating spreadsheets.

GRAPH This icon menu is used to draw, store and calculate information of functions.

DYNAMIC

GRAPH

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.

TABLE This icon menu is used to graph parabolas, circles, ellipses, and hyperbolas. You can input

a rectangular function, polar coordinate function or a parametric function for graphing.

RECURSION This icon menu is used to solve linear equations with two through six unknowns, and high-order

equations from 2nd to 6th degree.

CONIC

GRAPH

This icon menu is used to graph parabolas, circles, ellipses, and hyperbolas.

You can input a rectangular function, polar coordinate function or a arametric function for graphing.

EQUATION This icon menu is used to solve linear equations with two through six unknowns, and high-order

equations from 2nd to 6th degree.

PROGRAM This icon menu is used to store programs in the program area and to run programs.

The following explains the meaning of each icon on the fx-CG10 icon menu

Getting Started with the fx-CG10

ICON Menu Name Description

FINANCIAL This icon menu is used to perform nancial calculations and to draw cash

ow 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 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 allows you to draw, analyze and animate geometric objects.

PICTURE

PLOT

This icon menu allows you to plot points (that represents coordinates)

on screen and then perform various analysis of the data collected.

Conversion This icon menu allows you to perform unit conversions of length, area, volume, time, temperature,

velocity, mass, force/weight, pressure, energy/work, and power.

The following explains the meaning of each icon on the fx-CG10 icon menu

Getting Started with the fx-CG10

RUN-MATRIX

For basic calculations, like those that can be done on a scientic calculator, use the Run-Matrix menu.

From the Main Menu, press 1.

To select how certain commands and results will be interpreted or displayed, press Lp(SET UP). For Input/

Output, select Math for natural display of fractions, radicals and other expressions. For Frac Result, select d/c for a

fraction result as the default or ab/c for a mixed number as the default. For Angle, select Deg or Rad for degrees or

radians.

Note: the status bar at the top of the screen displays the selection for some of these options.

1. Evaluate 2

Press LzZ2$3$4$+z5$6l. To see the result as a mixed number,

press LxX. To see the result as a decimal, press x.

Getting Started with the fx-CG10

RUN-MATRIX

2. Simplify .

LsS18l. To see the result as a decimal, press x.

3. Add 48 and 24. Then, divide by 2. Finally, subtract from 56.

The purpose of this example is to demonstrate the Ans key. Ans represents the previous answer. Press

48+24l. Then, press M2l. Ans appears automatically when an operation symbol is

pressed. However, Ans has to be pressed for the subtraction part. Press 56-Ln(Ans)l.

Getting Started with the fx-CG10

GRAPH

To construct graphs and use graphical analysis commands, use the Graph menu. From the Main Menu, press 5.

The rst screen is the function/relation editor. To select how certain results will be displayed, press Lp

(SET UP).The suggested selections for Coord, Grid, Axes and Label are shown. Scroll down to these selections.

To make a change, highlight the item and use the function button that appears directly below the desired tab. For

example, when Coord is highlighted, q(On) will turn coordinates on and w(Off) will turn coordinates off.

Press dto return to the editor.

The Math Club plans to sell t-shirts. Previous experience suggests that the number of t-shirts sold depends

on the price. A good model for the number sold, y, as a function of the price, x, is y = -2x + 40.

1. Construct a graph of this equation.

To construct a graph of this model, press n2f+40l.To select the view window, press

Le(V-Window). Change the values for the window, as shown, pressing lafter each value. The values for

Scale determines the location for the marks on the axes and the gridlines. Press dto return to the editor.

To draw the graph, press u(DRAW). When a graph is displayed the +key can be used to zoom in,

the -key to zoom out, and$!BN to scroll.

Getting Started with the fx-CG10

GRAPH

2. How many shirts would be sold at a price of $12 per t-shirt?

To trace on the graph, press Lq(Trace). Use $! to move the cursor. To select a specic value, type

the value, in this case 12. A dialogue box opens, press l. To mark a point and keep the coordinates on the

display, press la second time.

3. There is a price that is too high, meaning no shirts are sold. At that point, the x-intercept of the graph (y = 0) and the

value of x is a root of the equation

−2x+40 =0

To nd the root, press Ly(G-Solv)q(ROOT). The result, $20, is shown at the bottom of the screen. To mark

an intercept and keep the coordinates on the display, press l a second time.

4. If

−2x+40

shirts are sold at price, x, then the number of dollars collected for the sale is

−

( )

−2x2+40x

To graph this function, rst, deselect the previous equation by pressing d,Bso the cursor is on Y1,

then press q(SELECT)N. Note, the = sign is not highlighted. The cursor should now be on Y2.

Press n2fs+40fl.

Getting Started with the fx-CG10

RUN-MATRIX

To select the view window, press Le(V-Window). Change the values for the window so that Ymax is 250 and

Yscale is 50. Press dto return to the editor. To draw the graph, press u(DRAW).

5. Compute the number of dollars earned, if each t-shirt is sold at $12.

To compute the number of dollars earned if shirts are sold for $12, press Lq(Trace). Type the value, in this

case 12. A dialogue box opens, pressl. The models predict that at a price of $12, 16 shirts will be sold

for a total of $192.

6. Determine the price that will give the greatest prot.

To determine the price that is predicted to make the most money, press Ly(G-Solv)w(MAX). The results,

$10 and $200, are shown at the bottom of the screen. To mark the point and keep the coordinates on the display,

press la second time.

Getting Started with the fx-CG10

GRAPH

7. Determine the price of each t-shirt in order to collect $150.

To determine the price of each t-shirt, in order to collect a total of $150, press Ly(G-Solv)u

(



)

(X-CAL)150l. (The

(



)

symbol moves to the next page of commands.)

There is another point where y = 150. Use $to move to the next point. Press lto mark one or both of these

points. $150 can be earned by selling shirts at $5 or at $15.

8. Find the intersection of the equations in Y1 and Y2.

Although it is not particularly meaningful in this example, a common problem is to nd the intersection point of two

graphs. Press dto return to the editor. Highlight Y1 and press q(SELECT). Now, both graphs will be drawn.

Press u(DRAW). To nd the intersection points for the two graphs, press y(G-Solv)y(INTSECT). 38 shirts

are sold at the price of $1, for a total of $38. (These graphs also intersect at (20, 0) where no shirts were sold.)

Getting Started with the fx-CG10

TABLE

1. Construct a table of values that shows the price, number of shirts, and total dollars using increments of $0.50.

To construct tables, from the Main Menu, press 7. The equations for the functions appear if they have been

previously entered, including those entered in the Graph menu.

To set the initial value, end value and the increment, press y(SET). Enter the values for Start, End and Step. Press

l after entering each value, then press d. To display the table, press y(TABLE). Use Nto scroll through

the table.

Note: values in the x-column can also be changed manually. Press any value desired, then press l. Here, the value

of 3 was changed to 7.

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