Casio Geometry User manual

http://edu.casio.com

Add-in application for fx-9860G series/

GRAPH 85 series calculators

Geometry

User’s Guide

20060601

Contents

1 Geometry Mode Overview

2 Drawing and Editing Objects

3 Controlling the Appearance of the Geometry

Window

4 Using Text and Labels in a Screen Image

5 Using the Measurement Box

6 Working with Animations

7 Error Messages

20060601

1-1

Geometry Mode Overview

1. Geometry Mode Overview

The Geometry Mode allows you to draw and analyze geometric objects.You can draw a

triangle and specify values to change the size of its sides so they are 3:4:5, and then check

the measurement of each of its angles.You can also lock the coordinates of a point or the

length of a line segment, and you can draw a circle and then draw a line that is tangent to a

particular point on the circle. The Geometry Mode also includes an animation feature that lets

you watch how an object changes in accordance with conditions you deﬁne.

Geometry Mode Menus

Unlike other modes, the Geometry Mode does not have function menus along the bottom of

the screen. Instead, it uses menus named [F1] through [F6] and [OPT], like the ones shown

below.

The following is a general explanation of Geometry Mode menus.

• Pressing a key that corresponds to a menu ([F1] through [F6] or [OPT]) will display the

menu for that tab.

• After displaying a menu, use eand dto move between menu screens.

• To close a menu without selecting anything, press J.

kMenu Operations in This Manual

This manual shows menu operations using the following form: 3(Draw) – 5:Vector. When

you see this, it means you can perform either of the following two operations.

• Press 3to display the Draw menu, use cand fto highlight “5:Vector”, and then

press w.

• Press 3to display the Draw menu and then press f.

Menu Reference

The following tables describe the menu items that appear on each of the Geometry Mode

menus.

k1(File)

To do this: Select this menu item:

Create a new ﬁle 1:New

Open a ﬁle 2:Open

Save a ﬁle under a new name 3:Save as

Display a list of functions assigned to each key 4:Key Help

20060601

1-2

Geometry Mode Overview

k1e(View)

To do this: Select this menu item:

Start a box zoom operation 1:Zoom Box

Enter the pan mode (page 3-3) 2:Pan

Enter the scroll mode (page 3-4) 3:Scroll

Enlarge the display image 4:Zoom In

Reduce the size of the display image 5:Zoom Out

Adjust the size of the display image so it ﬁlls the display 6:Zoom to Fit

k2(Edit)

To do this: Select this menu item:

Undo or redo the last operation 1:Undo/Redo

Select all objects on the screen 2:Select All

Deselect all objects on the screen 3:Deselect All

Select an entire polygon (page 2-8) 4:Select Figure

Delete the currently selected object 5:Delete

Clear the screen 6:Clear All

k3(Draw)

To do this: Select this menu item:

Plot a point 1:Point

Draw a line segment 2:Line Segment

Draw a straight line 3:Inﬁnite Line

Draw a ray 4:Ray

Draw a vector 5:Vector

Draw a circle 6:Circle

Draw an arc 7:Arc

Draw a triangle 8:Triangle

Draw an isosceles triangle 9:Isosc Triangle

Draw a rectangle A:Rectangle

Draw a square B:Square

Draw a polygon C:Polygon

Draw a regular n-gon D:Regular n-gon

20060601

1-3

Geometry Mode Overview

k4(Construct)

To construct this: Select this menu item:

A perpendicular bisector 1:Perp Bisector

A perpendicular 2:Perpendicular

A midpoint 3:Midpoint

An intersection 4:Intersection

An angle bisector 5:Angle Bisector

A parallel 6:Parallel

A tangent 7:Tangent

k5(Transform)

To do this: Select this menu item:

Reﬂect an object 1:Reﬂection

Translate an object by speciﬁed values 2:Translation

Translate an object using an existing vector 3:Trans(Sel Vec)

Rotate an object 4:Rotation

Dilate an object 5:Dilation

k6(Animate)

To do this: Select this menu item:

Add animation to two selected objects 1:Add Animation

Replace the current animation assigned to two selected

objects 2:Replace Anima

Turn on trace for a point and trace the movement of the point

while animation is being executed 3:Trace

Display the animation editing screen 4:Edit Animation

Perform an animation sequence once 5:Go (once)

Perform an animation sequence repeatedly 6:Go (repeat)

Add one or more values to the animation table (page 6-7) 7:Add Table

Display the animation table 8:Display Table

20060601

1-4

Geometry Mode Overview

kK(Option)

To do this: Select this menu item:

Input text 1:Text

Input an expression 2:Expression

Specify the number format Geometry Mode measurements 3:Number Format

Unlock all measurements 4:Clr Constraint

Display all objects 5:Show All

Hide the currently selected object 6:Hide

Using the Pointer

You can use the following operations to move the on-screen pointer (2) around the display

when drawing objects, editing objects, etc.

uTo move the pointer

Use the cursor keys to move the pointer around the display. Holding down a cursor key

moves the pointer at high speed.

uTo make the pointer jump to a particular location

Pressing a number key (bto j) will cause the pointer to jump to the corresponding

section of the screen as shown below.

hij

efg

bcd

20060601

1-5

Geometry Mode Overview

Using Key Help

Pressing 1(File) – 4:Key Help or the akey will display Key Help, which provides

information the function of each key in the Geometry Mode.

Use the cand fkeys to navigate between the three Key Help screens.

To exit the Key Help screens, press J.

Note

The key operations shown on the Key Help screens apply to the drawing screen only.

Managing Geometry Mode Files

This section explains how to save Geometry Mode data to ﬁles, and how to manage your

ﬁles.

Note

Whenever you save a ﬁle in the Geometry Mode, it is stored in main memory in a folder

named “<@GEOM>”.You can use the calculator’s MEMORY mode to view the data in main

memory. For more information, see the manual that comes with your calculator.

uTo create a new ﬁle

1. Perform the following operation: 1(File) – 1:New.

• The following dialog box will appear if you have a drawing on the screen.

2. To clear the current drawing and create a new ﬁle, press 1(Yes).

• This will create a new ﬁle and display a blank drawing screen.

20060601

1-6

Geometry Mode Overview

uTo open an existing ﬁle

1. Perform the following operation: 1(File) – 2:Open.

• This displays a menu of existing ﬁles.

2. Use cand fto move the highlighting to the ﬁle you want to open and then press w.

• The following dialog box will appear if you have a drawing on the screen.

3. To clear the current drawing, press 1(Yes).

• This will open the ﬁle you selected in step 2.

uTo delete a ﬁle

1. Perform the following operation: 1(File) – 2:Open.

• This displays a menu of existing ﬁles.

2. Use cand fto move the highlighting to the ﬁle you want to delete and then press

1(DEL).

• This causes a conﬁrmation dialog box to appear.

3. Press 1(Yes) to delete the selected ﬁle or 6(No) to cancel the delete operation.

4. To exit the ﬁle menu, press J.

20060601

1-7

Geometry Mode Overview

uTo save a ﬁle under a different name

1. While the ﬁle you want to save is open, perform the following operation: 1(File) –

3:Save as.

• This will display the ﬁle name input screen and automatically switch the calculator’s keys

to Alpha Lock.

The cursor changes to

0when the

keyboard is in Alpha Lock.

2. Input up to 8 characters for the ﬁle name and then press w.

• You can use the following characters in a ﬁle name.

-Uppercase alphabetic characters A through Z

-Lower-case rand Greek letter

-Numerals 0 through 9

-Period (.), blank space, quotes ("), plus sign (+), minus sign (–), multiplication sign (×),

division sign (÷), brackets ([ ]), braces ({ })

• After inputting the name you want, press wto save the ﬁle and return to its drawing

screen.

20060601

1-8

Geometry Mode Overview

Key Functions

The ﬁgure below shows the keys that are used for Geometry Mode drawing screen

operations.

Displays menus.

(Page 1-1)

Selects an entire polygon.

(Valid for polygons only.)

(Page 2-8)

Displays Key Help.

(Page 1-5)

Selects, deselects,

executes.

Selects, deselects,

executes.

Zooms in/out.

(Page 3-5)

Undoes/Redoes an

operation.

(Page 2-19)

Moves the pointer.

Selects, deselects,

executes.

Selects an object to

move it. (Page 2-20)

!bAdds an

animation table.

(Page 6-7)

Causes the pointer to

jump to a particular

position. (Page 1-4)

Enters the Scroll

mode. (Page 3-4)

Zooms the screen

image to fit the

window area.

(Page 3-5)

Displays the

measurement box.

(Page 5-1)

Cancels an operation,

or returns to the

previous menu or

screen.

Deletes the currently

selected object.

(Page 2-21)

Deselects all, cancels

an operation, deletes

all (when pressed

twice).

Displays menus.

(Page 1-1)

Selects an entire polygon.

(Valid for polygons only.)

(Page 2-8)

Displays Key Help.

(Page 1-5)

Selects, deselects,

executes.

Selects, deselects,

executes.

Zooms in/out.

(Page 3-5)

Undoes/Redoes an

operation.

(Page 2-19)

Moves the pointer.

Selects, deselects,

executes.

Selects an object to

move it. (Page 2-20)

!bAdds an

animation table.

(Page 6-7)

Causes the pointer to

jump to a particular

position. (Page 1-4)

Enters the Scroll

mode. (Page 3-4)

Zooms the screen

image to fit the

window area.

(Page 3-5)

Displays the

measurement box.

(Page 5-1)

Cancels an operation,

or returns to the

previous menu or

screen.

Deletes the currently

selected object.

(Page 2-21)

Deselects all, cancels

an operation, deletes

all (when pressed

twice).

20070101

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