Question about Texas Instruments TI-89 Calculator

If i enter 3 divided by 5 the answer ends up the same and does not calculate the answer into decimals like. To me the answer should show up as .6 but instead the answer is the same as what i asked it to calculate.

Are you using a ti-89? If so, check your mode settings and change Exact to Approximate.

Posted on Feb 09, 2009

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Posted on Jan 02, 2017

It depends on what you need. If you divide 100 by 3 you'll get 33.333333333333333333333333333333 and a lot more 3's.

If you need it to be 2 decimals behind the comma your answer will be 33.33 if you want it to be 3 decimals you'll just end up with 33.333 etc. etc.

So it completely depends on what you need to calculate.

If you need it to be 2 decimals behind the comma your answer will be 33.33 if you want it to be 3 decimals you'll just end up with 33.333 etc. etc.

So it completely depends on what you need to calculate.

Feb 15, 2015 | Google Computers & Internet

Press 2ND [square-root] 1 4 5 ) ENTER.

square-root is the 2nd function of the divide key. If the answer shows up as square-root 145, press diamond ENTER to convert to decimal.

square-root is the 2nd function of the divide key. If the answer shows up as square-root 145, press diamond ENTER to convert to decimal.

Apr 21, 2011 | Texas Instruments TI-89 Calculator

TI-5045 SV

ii

English.............................................................. 1

Fran?ais ............................................................ 6

Espa?ol ............................................................. 11

Portugu?s ........................................................... 16

Examples, exemples, ejemplos, exemplos .............................. 21

ILLUSTRATIONS ¦ FIGURES ¦ ILUSTRACIONES¦ ILUSTRA??ES

Removable tab

Languette

Leng?eta extracci?n

Alavanca usada para o rolo

Ink roller

Rouleau encreur

Tamp?n de tinta

Cartucho de tinta

1

English

Your Texas Instruments calculator has a built-in printer for producing a permanent record printout of

your calculations with negative numbers printed in red. A big, easy-to-read display also enables you to

check entries or perform quick calculations without printing.

GETTING STARTED

OFF ON PRT IC GT

POWER

1. Connect the calculator to a proper power outlet (110-120V or 220-240V

where available).

2. The calculator is turned on by setting the POWER switch to the PRT

position.

Inserting the paper (see illustrations 1, 2, 3, and 4 on page ii).

1. Turn on the calculator.

2. Open the printer compartment cover by pressing down on its front edge and sliding it back in the

direction of the arrow.

3. Fit the roll of paper on the holder so that it unrolls from the bottom, with the loose end toward the

calculator.

4. Cut the end of the paper squarely and insert it firmly into the printer slot on the back of the

calculator.

5. Press & until the paper is in the printing position.

Replacing the ink roller (see illustrations 5 and 6 on page ii)

1. Turn the calculator off and tear off the excess paper.

2. Remove the printer cover by pressing down on both sides of the front edge and sliding back in the

direction of the arrow.

3. Remove the old ink roller by lifting it with the removal tab.

4. Insert the new ink roller into the compartment and press down gently until it snaps into place. Close

the printer compartment.

Note: The old ink rollers should not be refilled. Replacement rollers can be obtained from your local

retailer. The warranty does not cover ink roller replacement.

2

SELECTION SWITCH SETTINGS

OFF ON PRT IC GT

POWER ROUND

: 5/4 9 + F 0 2 3

DECIMAL

4

TAX

SET CALC

Set the POWER, ROUND, DECIMAL and TAX switches as required.

Note: The TAX switch is spring-loaded to return to CALC when it is moved to SET and released.

The switch settings are summarized in the following table:

SWITCH SETTING FUNCTION

POWER ON

PRT

IC

GT

No printout is provided; however, the display can be printed by pressing

4.

The printer provides a printout of your calculations but does not count them.

The printer is on and an item count of additions and subtractions to or from

the register is printed when sub-totaled or totaled.

The GT position controls whether or not the totals from the independent add

register are accumulated in the grand total register.

ROUND Rounds the result of a calculation to the selected number of decimal places.

:

5/4

9

Truncates the result to the selected number of decimal places.

Rounds the result up or down according to its value. For example, when the

DECIMAL switch is set to 2, the result is rounded up if the third decimal

position is 5 or more and rounded down if it is 4 or less.

Rounds the result up to the selected number of decimal places.

Ex. 220 P 6

Setup: PRINTER: PRT, ROUND: :

DECIMAL: 2, TAX: CALC

Ex. 220 P 6

Setup: PRINTER: PRT, ROUND: 5/4

DECIMAL: 2, TAX: CALC

Press Display Printout Press Display Printout

2 0. 0¦ C

220 ' 220. 220¦ P

6 3 36.66 6¦ =

36¦66 ?

2 0. 0¦ C

220 ' 220. 220¦ P

6 3 36.67 6¦ =

36¦67 ?

DECIMAL + Add mode: All results are given with two decimal places. For addition and

subtraction only, a decimal point is automatically placed to the left of the last

two digits entered, unless the number already includes a decimal point.

F Floating mode: Any results are displayed and printed with the maximum

number of decimal places.

0 2 3 4 Fixed decimal mode: Sets the number of decimals to 0, 2, 3, or 4.

3

TAX SET

CALC

Lets you enter a tax rate to perform tax calculations.

Stores the tax rate. Pressing ! or " after a tax rate has been entered,

adds/subtracts the stored tax rate to/from the value in the display.

Ex. VAT = 17.5 %

100 + VAT

Ex. VAT = 17.5 %

235 - VAT

Setup: PRINTER: PRT, DECIMAL: F, ROUND: 5/4, TAX: CALC

Move and hold the TAX switch to SET. Press 217 L 5 and release the TAX switch. It

automatically returns to CALC. 17.5% is printed.

Press Display Printout Press Display Printout

2 0. 0¦ C

100! 117.5 100¦

17¦5 @

117¦5 ?

2 0. 0¦ C

235" 200. 235¦

N35¦ @

200¦ ?

Note: The most common setup is POWER: PRT, ROUND: 5/4, DECIMAL: 2, TAX: CALC. Use these

positions for the examples unless other settings are given.

KEY DESCRIPTIONS

Basic keys

I Clear Entry: Clears an entry, enabling you to enter another number in its place. Note

that this key does not clear the add register.

2 Clear Key: Clears the add register, any pending operations, and the display. 0.C is

printed. Does not clear the memory.

( Right Shift: Deletes the right-most digit entered from an entry before an operation key is

pressed. Shifts the remaining digits one place to the right.

L Decimal Point: Enters a decimal point.

4 Date/Non-Add: Prints a date (such as 12¦10¦96) or a number for reference purposes.

Does not affect calculations. This entry is printed on the left side of the printout, the date

or number preceded by the # sign.

& Paper Advance: Advances the printing paper.

Addition and subtraction keys

9 Add: Adds a number to the add register. Displays the cumulated result.

: Subtotal: Gives the intermediate total from the add register. Using this key does not

affect the contents of the add register.

. Subtract: Subtracts a number from the add register. Displays the cumulated result.

E Total: Gives the total from the add register, and then clears the register.

4

Multiplication, division, percent and margin keys

? Multiply: Multiplies the number in the display by the next value entered.

' Divide: Divides the number in the display by the next value entered.

3 Equals: Completes any pending multiplication or division operation.

> Percent: Calculates percentages, ratios, add-ons (e.g. of VAT), or discounts.

# Gross Profit Margin: Calculates the selling price of an item when its cost and gross

profit (or loss) margin are known; also used to obtain a price excluding VAT.

Ex.

Cost: 594

Profit margin: 40%

Press:2 594 # 40 3

Answer:

Selling price: 990

Gross profit: 396

Ex.

Selling price including VAT: 252

VAT %: 20%

Press: 252 # 20 . 3

Answer:

Selling price excluding VAT: 210

VAT: 42

/ Grand Total: Gives the grand total of the operations previously performed and stored in the

Grand Total register. Every time a total is obtained with E it is cumulated into this register

(printout shows G+) which is only cleared when / is pressed twice. During long

calculations, if / is not used, this re

ii

English.............................................................. 1

Fran?ais ............................................................ 6

Espa?ol ............................................................. 11

Portugu?s ........................................................... 16

Examples, exemples, ejemplos, exemplos .............................. 21

ILLUSTRATIONS ¦ FIGURES ¦ ILUSTRACIONES¦ ILUSTRA??ES

Removable tab

Languette

Leng?eta extracci?n

Alavanca usada para o rolo

Ink roller

Rouleau encreur

Tamp?n de tinta

Cartucho de tinta

1

English

Your Texas Instruments calculator has a built-in printer for producing a permanent record printout of

your calculations with negative numbers printed in red. A big, easy-to-read display also enables you to

check entries or perform quick calculations without printing.

GETTING STARTED

OFF ON PRT IC GT

POWER

1. Connect the calculator to a proper power outlet (110-120V or 220-240V

where available).

2. The calculator is turned on by setting the POWER switch to the PRT

position.

Inserting the paper (see illustrations 1, 2, 3, and 4 on page ii).

1. Turn on the calculator.

2. Open the printer compartment cover by pressing down on its front edge and sliding it back in the

direction of the arrow.

3. Fit the roll of paper on the holder so that it unrolls from the bottom, with the loose end toward the

calculator.

4. Cut the end of the paper squarely and insert it firmly into the printer slot on the back of the

calculator.

5. Press & until the paper is in the printing position.

Replacing the ink roller (see illustrations 5 and 6 on page ii)

1. Turn the calculator off and tear off the excess paper.

2. Remove the printer cover by pressing down on both sides of the front edge and sliding back in the

direction of the arrow.

3. Remove the old ink roller by lifting it with the removal tab.

4. Insert the new ink roller into the compartment and press down gently until it snaps into place. Close

the printer compartment.

Note: The old ink rollers should not be refilled. Replacement rollers can be obtained from your local

retailer. The warranty does not cover ink roller replacement.

2

SELECTION SWITCH SETTINGS

OFF ON PRT IC GT

POWER ROUND

: 5/4 9 + F 0 2 3

DECIMAL

4

TAX

SET CALC

Set the POWER, ROUND, DECIMAL and TAX switches as required.

Note: The TAX switch is spring-loaded to return to CALC when it is moved to SET and released.

The switch settings are summarized in the following table:

SWITCH SETTING FUNCTION

POWER ON

PRT

IC

GT

No printout is provided; however, the display can be printed by pressing

4.

The printer provides a printout of your calculations but does not count them.

The printer is on and an item count of additions and subtractions to or from

the register is printed when sub-totaled or totaled.

The GT position controls whether or not the totals from the independent add

register are accumulated in the grand total register.

ROUND Rounds the result of a calculation to the selected number of decimal places.

:

5/4

9

Truncates the result to the selected number of decimal places.

Rounds the result up or down according to its value. For example, when the

DECIMAL switch is set to 2, the result is rounded up if the third decimal

position is 5 or more and rounded down if it is 4 or less.

Rounds the result up to the selected number of decimal places.

Ex. 220 P 6

Setup: PRINTER: PRT, ROUND: :

DECIMAL: 2, TAX: CALC

Ex. 220 P 6

Setup: PRINTER: PRT, ROUND: 5/4

DECIMAL: 2, TAX: CALC

Press Display Printout Press Display Printout

2 0. 0¦ C

220 ' 220. 220¦ P

6 3 36.66 6¦ =

36¦66 ?

2 0. 0¦ C

220 ' 220. 220¦ P

6 3 36.67 6¦ =

36¦67 ?

DECIMAL + Add mode: All results are given with two decimal places. For addition and

subtraction only, a decimal point is automatically placed to the left of the last

two digits entered, unless the number already includes a decimal point.

F Floating mode: Any results are displayed and printed with the maximum

number of decimal places.

0 2 3 4 Fixed decimal mode: Sets the number of decimals to 0, 2, 3, or 4.

3

TAX SET

CALC

Lets you enter a tax rate to perform tax calculations.

Stores the tax rate. Pressing ! or " after a tax rate has been entered,

adds/subtracts the stored tax rate to/from the value in the display.

Ex. VAT = 17.5 %

100 + VAT

Ex. VAT = 17.5 %

235 - VAT

Setup: PRINTER: PRT, DECIMAL: F, ROUND: 5/4, TAX: CALC

Move and hold the TAX switch to SET. Press 217 L 5 and release the TAX switch. It

automatically returns to CALC. 17.5% is printed.

Press Display Printout Press Display Printout

2 0. 0¦ C

100! 117.5 100¦

17¦5 @

117¦5 ?

2 0. 0¦ C

235" 200. 235¦

N35¦ @

200¦ ?

Note: The most common setup is POWER: PRT, ROUND: 5/4, DECIMAL: 2, TAX: CALC. Use these

positions for the examples unless other settings are given.

KEY DESCRIPTIONS

Basic keys

I Clear Entry: Clears an entry, enabling you to enter another number in its place. Note

that this key does not clear the add register.

2 Clear Key: Clears the add register, any pending operations, and the display. 0.C is

printed. Does not clear the memory.

( Right Shift: Deletes the right-most digit entered from an entry before an operation key is

pressed. Shifts the remaining digits one place to the right.

L Decimal Point: Enters a decimal point.

4 Date/Non-Add: Prints a date (such as 12¦10¦96) or a number for reference purposes.

Does not affect calculations. This entry is printed on the left side of the printout, the date

or number preceded by the # sign.

& Paper Advance: Advances the printing paper.

Addition and subtraction keys

9 Add: Adds a number to the add register. Displays the cumulated result.

: Subtotal: Gives the intermediate total from the add register. Using this key does not

affect the contents of the add register.

. Subtract: Subtracts a number from the add register. Displays the cumulated result.

E Total: Gives the total from the add register, and then clears the register.

4

Multiplication, division, percent and margin keys

? Multiply: Multiplies the number in the display by the next value entered.

' Divide: Divides the number in the display by the next value entered.

3 Equals: Completes any pending multiplication or division operation.

> Percent: Calculates percentages, ratios, add-ons (e.g. of VAT), or discounts.

# Gross Profit Margin: Calculates the selling price of an item when its cost and gross

profit (or loss) margin are known; also used to obtain a price excluding VAT.

Ex.

Cost: 594

Profit margin: 40%

Press:2 594 # 40 3

Answer:

Selling price: 990

Gross profit: 396

Ex.

Selling price including VAT: 252

VAT %: 20%

Press: 252 # 20 . 3

Answer:

Selling price excluding VAT: 210

VAT: 42

/ Grand Total: Gives the grand total of the operations previously performed and stored in the

Grand Total register. Every time a total is obtained with E it is cumulated into this register

(printout shows G+) which is only cleared when / is pressed twice. During long

calculations, if / is not used, this re

Jan 16, 2011 | Office Equipment & Supplies

You need to set the number of decimal places to 1 or more.

• Press [2nd] [MODE] and scroll to FLOAT.

• Press the right arrow key until the number of decimal places needed is highlighted.

• Press the [ENTER] key.

For 2 decimal places, 2 should be highlighted. All answers will then be rounded to 2 decimal places.

• Press [2nd] [QUIT] to return to the home screen.

• Press [2nd] [MODE] and scroll to FLOAT.

• Press the right arrow key until the number of decimal places needed is highlighted.

• Press the [ENTER] key.

For 2 decimal places, 2 should be highlighted. All answers will then be rounded to 2 decimal places.

• Press [2nd] [QUIT] to return to the home screen.

May 03, 2010 | Texas Instruments TI-30X-IISTK Scientific...

Answers show in an unexpected (by you) format, but they are correct and in conformity with the MODE settings of the calculator.

If you want to have the results displayed as decimal numbers,

If you want to have the results displayed as decimal numbers,

- open the HOME screen.
- Press MODE to open the Mode configuration.
- Press F2 or use the DownArrow to reach the second page of settings.
- Move Cursor to highlight the option at the right of EXACT/APPROX.
- Use the right arrow to unfold the menu and select 3:APPROXIMATE.
- Press ENTER to Save the changes.

Mar 22, 2010 | Texas Instruments TI-89 Calculator

Hi,

You are not dividing problems, you are dividing number. This said, there is a simple way to ensure that the results of divisions are displayed in decimal form: It consists in putting a decimal mark (decimal point) at the end one integer (whole number)

ex:

3/2. gives 1.5

3./2 gives 1.5

3./2. gives 1.5

You can also configure your calculator to display all numerical results in decimal format. To do that press [MODE][F2]. Use the down arrow to select the ligne**Exact/Approx**, then use the right arrow to unfold the menu options 1:Auto

2:Exact

3:Approximate

Select 3:Approximate and press [ENTER]

Hope it helps.

You are not dividing problems, you are dividing number. This said, there is a simple way to ensure that the results of divisions are displayed in decimal form: It consists in putting a decimal mark (decimal point) at the end one integer (whole number)

ex:

3/2. gives 1.5

3./2 gives 1.5

3./2. gives 1.5

You can also configure your calculator to display all numerical results in decimal format. To do that press [MODE][F2]. Use the down arrow to select the ligne

2:Exact

3:Approximate

Select 3:Approximate and press [ENTER]

Hope it helps.

Nov 15, 2009 | Texas Instruments TI-89 Calculator

Hello,

To convert from fractions to decimals, and from decimals to fractions use the [S<-->D] key. If you want your decimal results to have a fixed number of decimal places press [SHIFT][SETUP][6:Fix]. Screen shows Fix 0~9. Enter the number of decimal places exemple 3.

Dans ce cas 1/6 is displayes ase 0.167.

Hope it helps.

To convert from fractions to decimals, and from decimals to fractions use the [S<-->D] key. If you want your decimal results to have a fixed number of decimal places press [SHIFT][SETUP][6:Fix]. Screen shows Fix 0~9. Enter the number of decimal places exemple 3.

Dans ce cas 1/6 is displayes ase 0.167.

Hope it helps.

Sep 23, 2009 | Casio FX-115ES Scientific Calculator

This is what I did. Go to Math/ 9.Algebra/ 5.approx(

Jun 24, 2009 | Texas Instruments TI-89 Calculator

you can also go press the 'mode' button, and go down until you're at 'Exact/Approx' and choose '3: Approximate'

Sep 10, 2008 | Texas Instruments TI-89 Calculator

You need to change a setting in the mode menu.

Change exact/approx to approximate and your answer will be given in decimal.

Change exact/approx to approximate and your answer will be given in decimal.

Jun 12, 2008 | Texas Instruments TI-89 Calculator

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