Texas TI-83 Instructions Manual

Graphics calculator
instructions

Contents:

A

Basic calculations

B

Basic functions

C

Secondary function and
alpha keys

D

Memory

E

Lists

F

Statistical graphs

G

Working with functions

10 GRAPHICS CALCULATOR INSTRUCTIONS

In this course it is assumed that you have a graphics calculator. If you learn how to operate
your calculator successfully, you should experience little difficulty with future arithmetic
calculations.

There are many different brands (and types) of calculators. Different calculators do not have
exactly the same keys. It is therefore important that you have an instruction booklet for your
calculator, and use it whenever you need to.

However, to help get you started, we have included here some basic instructions for the Texas
Instruments TI-83 and the Casio fx-9860G calculators. Note that instructions given may
need to be modified slightly for other models.

GETTING STARTED

Texas Instruments TI-83

The screen which appears when the calculator is turned on is the home screen. This is where
most basic calculations are performed.

You can return to this screen from any menu by pressing

When you are on this screen you can type in an expression and evaluate it using the
key.

Casio fx-9860g

Press

This is where most of the basic calculations are performed.

When you are on this screen you can type in an expression and evaluate it using the
key.

Most modern calculators have the rules for Order of Operations built into them. This order
is sometimes referred to as BEDMAS.

This section explains how to enter different types of numbers such as negative numbers and
fractions, and how to perform calculations using grouping symbols (brackets), powers, and
square roots. It also explains how to round off using your calculator.

MENU to access the Main Menu, and select RUN¢MAT.

A

BASIC CALCULATIONS

2nd MODE .

ENTER

EXE

NEGATIVE NUMBERS

To enter negative numbers we use the sign change key. On both the TI-83 and Casio this

looks like

Simply press the sign change key and then type in the number.

For example, to enter ¡7, press

(¡)

.

(¡)

7.

GRAPHICS CALCULATOR INSTRUCTIONS 11

FRACTIONS

On most scientific calculators and also the Casio graphics calculator there is a special key
for entering fractions. No such key exists for the TI-83, so we use a different method.

Texas Instruments TI-83

To enter common fractions, we enter the fraction as a division.

For example, we enter

3

by typing 3

4

it is generally wise to place this division in brackets, i.e.,

¥

4. If the fraction is part of a larger calculation,

¥

(

3

)

4

.

To enter mixed numbers, either convert the mixed number to an improper fraction and enter
as a common fraction or enter the fraction as a sum.

For example, we can enter 2

3
4

as

(

11

¥

)

4

or

+

(

2

¥

3

)

4

.

Casio fx-9860g

To enter fractions we use the fraction key

For example, we enter

SHIFT ab/c (a

b
c

3

by typing 3 a

4

d

$

) to convert between mixed numbers and improper fractions.

c

ab/c .

b

/c 4 and 2

3

by typing 2 a

4

b

/c 3 ab/c 4. Press

SIMPLIFYING FRACTIONS & RATIOS

Graphics calculators can sometimes be used to express fractions and ratios in simplest form.

Texas Instruments TI-83

35

To express the fraction

MATH 1 ENTER . The result is

in simplest form, press 35

56

5

.

8

¥

56

To express the ratio

¥

3

¥

)

(

1

The ratio is 8:15.

Casio fx-9860g

To express the fraction

EXE . The result is

To express the ratio

¥

3

b

1 a

/c 1 ab/c 4 EXE . The ratio is 8:15.

ENTERING TIMES

In questions involving time, it is often necessary to be able to express time in terms of hours,
minutes and seconds.

2

1

+

:1

3

1

35
56

5

.

8

2

:1

3

in simplest form, press

4

¥

)

4

MATH 1 ENTER .

in simplest form, press 35 a

1

in simplest form, press 2 a

4

(

b

/c 56

2

b

/c

12 GRAPHICS CALCULATOR INSTRUCTIONS

Texas Instruments TI-83

To enter 2 hours 27 minutes, press 2

o

1:

27 2nd MATRX 2:

0

. This is equivalent to 2:45 hours.

2nd MATRX (ANGLE)

To express 8:17 hours in terms of hours, minutes and seconds,

press 8:17

2nd MATRX 4:IDMS ENTER .

This is equivalent to 8 hours, 10 minutes and 12 seconds.

Casio fx-9860g

To enter 2 hours 27 minutes, press OPTN F6 F5 (ANGL)2

F4 (

o000

) 27 F4 (

o000

) EXE . This is equivalent to 2:45 hours.

To express 8:17 hours in terms of hours, minutes and seconds,

press 8:17

OPTN F6 F5 (ANGL) F6 F3 (IDMS) EXE .

This is equivalent to 8 hours, 10 minutes and 12 seconds.

B

BASIC FUNCTIONS

GROUPING SYMBOLS (BRACKETS)

Both the TI-83 and Casio have bracket keys that look like

(

Brackets are regularly used in mathematics to indicate an expression which needs to be
evaluated before other operations are carried out.

For example, to enter 2 £ (4 + 1) we type 2

£

+

(

4

1

We also use brackets to make sure the calculator understands the expression we are typing in.

For example, to enter

2

we type 2

4+1

the calculator would think we meant

2
4

¥

+1.

+

(

4

)

1

. If we typed 2

In general, it is a good idea to place brackets around any complicated expressions which need
to be evaluated separately.

and

)

)

.

.

¥

+

4

POWER KEYS

Both the TI-83 and Casio also have power keys that look like
press the power key, then enter the index or exponent.

For example, to enter 25

3

we type 25

^

3.

^

. We type the base first,

1

Note that there are special keys which allow us to quickly evaluate squares.

Numbers can be squared on both TI-83 and Casio using the special key

2

For example, to enter 25

we type 25 x2.

2

x

.

GRAPHICS CALCULATOR INSTRUCTIONS 13

SQUARE ROOTS

To enter square roots on either calculator we need to use a secondary function (see the

).Secondary Function and Alpha Keys

Texas Instruments TI-83

)

2nd .

.

The TI-83 uses a secondary function key

To enter

p

36 we press 2nd x

2

36

The end bracket is used to tell the calculator we have finished entering terms under the square
root sign.

Casio fx-9860g

The Casio uses a shift key

p

To enter

36 we press SHIFT x

SHIFT to get to its second functions.

2

36.

If there is a more complicated expression under the square root sign you should enter it in
brackets.

For example, to enter

p

18 ¥2 we press SHIFT x

2

(

18

¥

)

2

.

ROUNDING OFF

You can use your calculator to round off answers to a fixed number of decimal places.

Texas Instruments TI-83

To round to 2 decimal places, press

MODE then H to scroll

down to Float.

Use the

ENTER . Press 2nd MODE to return to the home screen.

If you want to unfix the number of decimal places, press

I button to move the cursor over the 2 and press

MODE

H ENTER to highlight Float.

Casio fx-9860g

To round to 2 decimal places, select RUN¢MAT from the Main

Menu, and press

down to Display, and press

the number of decimal places. Press

SHIFT MENU to enter the setup screen. Scroll

F1 (Fix). Press 2 EXE to select

EXIT to return to the home

screen.

To unfix the number of decimal places, press

SHIFT MENU to return to the setup screen,

scroll down to Display, and press

F3 (Norm).

GRAPHICS CALCULATOR INSTRUCTIONS

14

INVERSE TRIGONOMETRIC FUNCTIONS

To enter inverse trigonometric functions, you will need to use a secondary function (see the

).Secondary Function and Alpha Keys

Texas Instruments TI-83

The inverse trigonometric functions sin

SIN , COS and TAN respectively. They are accessed by using the secondary function key
2nd .

For example, if cos x =

To calculate this, press

3

, then x = cos

5

2nd COS 3

¡1

, cos¡1and tan¡1are the secondary functions of

¡

¢

3

¥

¡1

5

5

)

ENTER .

.

Casio fx-9860g

¡1

The inverse trigonometric functions sin

sin , cos and tan respectively. They are accessed by using the secondary function key
SHIFT .

For example, if cos x =

To calculate this, press

3

, then x = cos

5

SHIFT cos

, cos¡1and tan¡1are the secondary functions of

¡

¢

3

¡1

(

3

¥

.

5

)

5

EXE .

SCIENTIFIC NOTATION

If a number is too large or too small to be displayed neatly on the screen, it will be expressed

k

in scientific notation, that is, in the form a£10

Texas Instruments TI-83

To evaluate 2300

3

, press 2300

^

3 ENTER . The answer

displayed is 1:2167e10, which means 1:2167 £10

To evaluate

3

20 000

, press 3

¥

20 000 ENTER . The answer

displayed is 1:5e¡4, which means 1:5 £10

You can enter values in scientific notation using the EE function,

which is accessed by pressing

For example, to evaluate

2:6£10

13

13 ENTER . The answer is 2 £ 10

,

2nd

14

.

, press 2:6 2nd

13

.

where 1 6 a 6 10 and k is an integer.

10

.

¡4

.

,

14

¥

Casio fx-9860g

GRAPHICS CALCULATOR INSTRUCTIONS 15

To evaluate 23003, press 2300

displayed is 1:2167e+10, which means 1:2167 £ 10

To evaluate

displayed is 1:5e¡04, which means 1:5 £10

You can enter values in scientific notation using the

For example, to evaluate

EXE . The answer is 2 £ 10

3

20 000

, press 3

2:6£10

13

C

^

3 EXE . The answer

10

.

¥

20 000 EXE . The answer

¡4

.

EXP key.

14

, press 2:6 EXP 14

13

.

¥

13

SECONDARY FUNCTION AND

ALPHA KEYS

Texas Instruments TI-83

The secondary function of each key is displayed in yellow above the key. It is accessed by

pressing the

For example, to calculate

The alpha function of each key is displayed in green above the key. It is accessed by pressing

the

ALPHA key followed by the key corresponding to the desired letter. The main purpose

of the alpha keys is to store values into memory which can be recalled later. Refer to the

Memory section.

Casio fx-9860g

The shift function of each key is displayed in yellow above the key. It is accessed by pressing

the

SHIFT key followed by the key corresponding to the desired shift function.

For example, to calculate

The alpha function of each key is displayed in red above the key. It is accessed by pressing

the

ALPHA key followed by the key corresponding to the desired letter. The main purpose

of the alpha keys is to store values which can be recalled later.

2nd key, followed by the key corresponding to the desired secondary function.

p

36, press 2nd x

p

36, press SHIFT x236 EXE .

2

36

)

ENTER .

D

Utilising the memory features of your calculator allows you to recall calculations you have
performed previously. This not only saves time, but also enables you to maintain accuracy
in your calculations.

MEMORY

16 GRAPHICS CALCULATOR INSTRUCTIONS

SPECIFIC STORAGE TO MEMORY

Values can be stored into the variable letters A, B, ..., Z using either calculator. Storing a
value in memory is useful if you need that value multiple times.

Texas Instruments TI-83

Suppose we wish to store the number 15:4829 for use in a

number of calculations. Type in the number then press

ALPHA MATH (A) ENTER .

STO

I

We can now add 10 to this value by pressing

+

10 ENTER , or cube this value by pressing ALPHA MATH

^

3 ENTER .

ALPHA MATH

Casio fx-9860g

Suppose we wish to store the number 15:4829 for use in a number

of calculations. Type in the number then press

X,µ,T (A) EXE .

We can now add 10 to this value by pressing

ALPHA X,µ,T

10 EXE , or cube this value by pressing ALPHA X,µ,T

EXE .

I

ALPHA

+

^

ANS VARIABLE

Texas Instruments TI-83

3

The variable Ans holds the most recent evaluated expression,

and can be used in calculations by pressing

For example, suppose you evaluate 3 £ 4, and then wish to

subtract this from 17. This can be done by pressing 17

(¡)

2nd

ENTER .

If you start an expression with an operator such as
etc, the previous answer Ans is automatically inserted ahead of

the operator. For example, the previous answer can be halved

simply by pressing

¥

2 ENTER .

If you wish to view the answer in fractional form, press

1 ENTER .

2nd

(¡)

.

+,¡

MATH

¡

,

GRAPHICS CALCULATOR INSTRUCTIONS 17

Casio fx-9860g

The variable Ans holds the most recent evaluated expression,

and can be used in calculations by pressing

SHIFT

(¡)

. For

example, suppose you evaluate 3 £ 4, and then wish to subtract

this from 17. This can be done by pressing 17

EXE .

¡

SHIFT

(¡)

If you start an expression with an operator such as

+,¡

,

etc, the previous answer Ans is automatically inserted ahead of
the operator. For example, the previous answer can be halved

¥

simply by pressing

If you wish to view the answer in fractional form, press

2 EXE .

J I

F

D .

RECALLING PREVIOUS EXPRESSIONS

Texas Instruments TI-83

The ENTRY function recalls previously evaluated expressions, and is used by pressing

ENTER .

This function is useful if you wish to repeat a calculation with a minor change, or if you have
made an error in typing.

p

Suppose you have evaluated 100 +

of retyping the command, it can be recalled by pressing

132. If you now want to evaluate 100 +p142, instead

2nd ENTER .

The change can then be made by moving the cursor over the 3 and changing it to a 4, then

2nd

pressing

ENTER .

p

If you have made an error in your original calculation, and intended to calculate 1500+

again you can recall the previous command by pressing

2nd ENTER .

132,

Move the cursor to the first 0.

You can insert the digit 5, rather than overwriting the 0, by pressing

2nd DEL 5 ENTER .

Casio fx-9860g

Pressing the left cursor key allows you to edit the most recently evaluated expression, and is
useful if you wish to repeat a calculation with a minor change, or if you have made an error
in typing.

p

Suppose you have evaluated 100 +

132.

p

If you now want to evaluate 100 +

142, instead of retyping the command, it can be recalled

by pressing the left cursor key.

Move the cursor between the 3 and the 2, then press

to a 4. Press

EXE to re-evaluate the expression.

DEL 4 to remove the 3 and change it

18 GRAPHICS CALCULATOR INSTRUCTIONS

E

Lists are used for a number of purposes on the calculator. They enable us to enter sets of
numbers, and we use them to generate number sequences using algebraic rules.

LISTS

CREATING A LIST

Texas Instruments TI-83

Press

To enter the data f2, 5, 1, 6, 0, 8g into List1, start by moving

the cursor to the first entry of L

...... and so on until all the data is entered.

Casio fx-9860g

Selecting STAT from the Main Menu takes you to the list editor
screen.

To enter the data f2, 5, 1, 6, 0, 8g into List 1, start by moving

STAT 1 to take you to the list editor screen.

1. Press 2 ENTER 5 ENTER

the cursor to the first entry of List 1. Press 2
and so on until all the data is entered.

EXE 5 EXE ......

DELETING LIST DATA

Texas Instruments TI-83

Pressing

Move the cursor to the heading of the list you want to delete then press

Casio fx-9860g

Selecting STAT from the Main Menu takes you to the list editor screen.

Move the cursor to anywhere on the list you wish to delete, then press

F1 (Yes).

STAT 1 takes you to the list editor screen.

F6 (B) F4 (DEL-A)

REFERENCING LISTS

CLEAR ENTER .

Texas Instruments TI-83

Lists can be referenced by using the secondary functions of the keypad numbers 1–6.

For example, suppose you want to add 2 to each element of List1 and display the results in

List2. To do this, move the cursor to the heading of L

2 and press 2nd 1

+

2 ENTER .

Casio fx-9860g

GRAPHICS CALCULATOR INSTRUCTIONS 19

Lists can be referenced using the List function, which is accessed by pressing

For example, if you want to add to each element of and display the results in

, move the cursor to the heading of and press

List 2 List 2

Casio models without the List function can do this by pressing

(List) 1

+

2 EXE .

2 List 1

SHIFT 1

(List)

OPTN F1 (LIST) F1

SHIFT 1.

+

1

2 EXE .

NUMBER SEQUENCES

Texas Instruments TI-83

You can create a sequence of numbers defined by a certain rule
using the seq command.

This command is accessed by pressing
the OPS section of the List menu, then selecting 5:seq.

For example, to store the sequence of even numbers from 2 to 8

2nd STAT I to enter

in , move the cursor to the heading of , then pressList3 L

STAT I 5 to enter the seq command, followed by 2 X,T,µ,n

,

X,T,µ,n

This evaluates 2x for every value of x from 1 to 4.

Casio fx-9860g

You can create a sequence of numbers defined by a certain rule
using the seq command.

This command is accessed by pressing
(Seq).

For example, to store the sequence of even numbers from 2 to
8 in List 3, move the cursor to the heading of List 3, then press

OPTN F1 F5 to enter a sequence, followed by 2 X,µ,T

,

,

1

)

4

ENTER .

3

OPTN F1 (LIST) F5

2nd

,

X,µ,T

This evaluates 2x for every value of x from 1 to 4 with an
increment of 1.

,

,

1

,

4

)

1

EXE .

20 GRAPHICS CALCULATOR INSTRUCTIONS

F

STATISTICAL GRAPHS

STATISTICS

Your graphics calculator is a useful tool for analysing data and creating statistical graphs.

In this section we will produce descriptive statistics and graphs for the data set 52336

4537571895.

Texas Instruments TI-83

Enter the data set into List1 using the instruc­tions on page 18. To obtain descriptive statistics

of the data set, press

2nd 1(L1) ENTER .

To obtain a boxplot of the data, press

Y= (STAT PLOT) 1 and set up Statplot1 as

shown. Press
boxplot with an appropriate window.

ZOOM 9:ZoomStat to graph the

STAT I 1:1-Var Stats

2nd

To obtain a vertical bar chart of the data, press

2nd Y= 1, and change the type of graph to

a vertical bar chart as shown. Press
9:ZoomStat to draw the bar chart. Press

WINDOW and set the Xscl to 1, then GRAPH

to redraw the bar chart.

We will now enter a second set of data, and
compare it to the first.

Enter the data set 96235575676
344584 into List2, press
and change the type of graph back to a boxplot

as shown. Move the cursor to the top of the
screen and select Plot2. Set up Statplot2 in the
same manner, except set the XList to L

ZOOM 9:ZoomStat to draw the side-by-side

boxplots.

Casio fx-9860g

ZOOM

2nd Y= 1,

2. Press

Enter the data into List 1 using the instructions
on page 18. To obtain the descriptive statis-

tics, press
the bottom left corner of the screen, then press

F2 (CALC) F1 .(1VAR)

F6 (B) until the GRPH icon is in

To obtain a boxplot of the data, press EXIT

EXIT F1 (GRPH) F6 (SET), and set up

GRAPHICS CALCULATOR INSTRUCTIONS 21

StatGraph 1 as shown. Press

EXIT F1

(GPH1) to draw the boxplot.

To obtain a vertical bar chart of the data, press

EXIT F6 (SET) F2 (GPH 2), and set up

StatGraph 2 as shown. Press

EXIT F2

(GPH 2) to draw the bar chart (set Start to 0,
and Width to 1).

We will now enter a second set of data, and
compare it to the first.

Enter the data set 9623557567634
4584 into List 2, then press

F2 (GPH2) and set up StatGraph 2 to draw a

boxplot of this data set as shown. Press

F4 (SEL), and turn on both StatGraph 1 and

StatGraph 2. Press

F6 (DRAW) to draw the side-by-side boxplots.

F6 (SET)

EXIT

G

WORKING WITH FUNCTIONS

GRAPHING FUNCTIONS

Texas Instruments TI-83

Pressing
to graph. Delete any unwanted functions by scrolling down to

the function and pressing

To graph the function y = x

1, and press X,T,µ,n x

Y

stores the function into Y
the function.

To view a table of values for the function, press
(TABLE). The starting point and interval of the table values can

Y= selects the Y= editor, where you can store functions

CLEAR .

2

¡ 3x ¡ 5, move the cursor to

2

¡

3 X,T,µ,n

1. Press GRAPH to draw a graph of

¡

5 ENTER . This

2nd GRAPH

be adjusted by pressing

2nd WINDOW (TBLSET).

22 GRAPHICS CALCULATOR INSTRUCTIONS

Casio fx-9860g

Selecting GRAPH from the Main Menu takes you to the Graph
Function screen, where you can store functions to graph. Delete
any unwanted functions by scrolling down to the function and

pressing

To graph the function y = x

and press

the function into Y1. Press

DEL F1 (Yes).

X,µ,T x

2

¡

2

¡3x¡5, move the cursor to Y1

3 X,µ,T

F6 (DRAW) to draw a graph of

¡

5 EXE . This stores

the function.

To view a table of values for the function, press

MENU and

select TABLE. The function is stored in Y1, but not selected.

Press

the table. You can adjust the table settings by pressing

F1 (SEL) to select the function, and F6 (TABL) to view

EXIT

and then F5 (SET) from the Table Function screen.

FINDING POINTS OF INTERSECTION

It is often useful to find the points of intersection of two graphs, for instance, when you are
trying to solve simultaneous equations.

Texas Instruments TI-83

We can solve y =11¡ 3x and y =

ously by finding the point of intersection of these two lines.

Press

2. Press GRAPH to draw a graph of the functions.

Y

Y= , then store 11 ¡ 3x into Y1 and

12 ¡x

simultane-

2

12 ¡x

into

2

To find their point of intersection, press

5, which selects 5:intersect. Press
the functions Y

1 and Y2 as the functions you want to find the

intersection of, then use the arrow keys to move the cursor close

to the point of intersection and press

The solution x =2, y =5 is given.

Casio fx-9860g

We can solve y =11¡ 3x and y =

ously by finding the point of intersection of these two lines.
Select GRAPH from the Main Menu, then store 11 ¡3x into

12 ¡x

Y1 and

into Y2. Press

2

of the functions.

2nd TRACE (CALC)

ENTER twice to specify

ENTER once more.

12 ¡x

simultane-

2

F6 (DRAW) to draw a graph

GRAPHICS CALCULATOR INSTRUCTIONS 23

To find their point of intersection, press F5 (G-Solv) F5

(ISCT). The solution x =2, y =5 is given.

Note: If there is more than one point of intersection, the

remaining points of intersection can be found by pressing

I .

SOLVING f(x)=0

In the special case when you wish to solve an equation of the form f (x)=0, this can be
done by graphing y = f(x) and then finding when this graph cuts the x-axis.

Texas Instruments TI-83

To solve x

3

¡ 3x

x

3

2

+ x +1 into Y1. Press GRAPH to draw the graph.

To find where this function first cuts the x-axis, press

TRACE (CALC) 2, which selects 2:zero. Move the cursor

to the left of the first zero and press

cursor to the right of the first zero and press

move the cursor close to the first zero and press
more. The solution x ¼¡0:414 is given.

¡ 3x

2

+ x +1 = 0, press Y= and store

ENTER , then move the

ENTER . Finally,

ENTER once

2nd

Repeat this process to find the remaining solutions x =1 and
x ¼ 2:41 .

Casio fx-9860g

To solve x
Main Menu and store x

3

¡ 3x2+ x +1 = 0, select GRAPH from the

3

¡3x

2

+ x +1 into Y1. Press F6

(DRAW) to draw the graph.

To find where this function cuts the x-axis, press

F1 (ROOT). The first solution x ¼¡0:414 is given.

Press

I to find the remaining solutions x =1 and x ¼ 2:41 .

F5 (G-Solv)

TURNING POINTS

Texas Instruments TI-83

To find the turning point (vertex) of y = ¡x

Y= and store ¡x

2

+2x +3 into Y1. Press GRAPH to draw

the graph.

2

+2x +3, press

From the graph, it is clear that the vertex is a maximum, so press

2nd TRACE (CALC) 4 to select 4:maximum.

24 GRAPHICS CALCULATOR INSTRUCTIONS

Move the cursor to the left of the vertex and press ENTER , then

move the cursor to the right of the vertex and press

Finally, move the cursor close to the vertex and press

ENTER .

ENTER

once more. The vertex is (1, 4).

Casio fx-9860g

2

To find the turning point (vertex) of y = ¡x

Menu and store ¡x

2

+2x +3 into Y1. Press F6 (DRAW) to draw the graph.

+2x +3, select GRAPH from the Main

From the graph, it is clear that the vertex is a maximum, so to

find the vertex press

F5 (G-Solv) F2 (MAX).

The vertex is (1, 4).

ADJUSTING THE VIEWING WINDOW

When graphing functions it is important that you are able to view all the important features
of the graph. As a general rule it is best to start with a large viewing window to make sure
all the features of the graph are visible. You can then make the window smaller if necessary.

Texas Instruments TI-83

Some useful commands for adjusting the viewing window
include:

ZOOM 0:ZoomFit : This command scales the y-axis to fit

the minimum and maximum values of
the displayed graph within the current
x-axis range.

ZOOM 6:ZStandard : This command returns the viewing

window to the default setting of
¡10 6 x 6 10, ¡10 6 y 6 10:

If neither of these commands are helpful, the viewing window

can be adjusted manually by pressing

WINDOW and setting the

minimum and maximum values for the x and y axes.

Casio fx-9860g

The viewing window can be adjusted by pressing

F3 (V-Window). You can manually set the minimum and

maximum values of the x and y axes, or press

SHIFT

F3 (STD)

to obtain the standard viewing window ¡10 6 x 6 10,
¡10 6 y 6 10: