Question about Texas Instruments TI-30 XIIS Calculator

How do I turn off the rounding feature? All my calculations are automatically rounded.

Look for button with FIX or FSE and then press:

[2nd][FIX][.] and now it's will give the whole number.

Rate me, thanks.

Posted on Jul 08, 2009

Hi,

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Posted on Jan 02, 2017

You should try to read a bit about significant digits. In scientific and technical calculations only a few digits have any meaning and results are rounded. Get a scientific calculator that displays 10 or more digits and that will be more than enough for your very complex calculations.

You can use the calculator on your computer. Look under the Accessories submenu in All programs.

You can use the calculator on your computer. Look under the Accessories submenu in All programs.

Jan 08, 2013 | Office Equipment & Supplies

The 107,186.37 is what the future value would be if the interest per month is 0.58%, which is 6.96% per year. Try the following:

2nd [CLR TVM] 1 2 N 7 I/YR 1 0 0 0 0 0 PV CPT FV

As for rounding, you can change the calculator display to any number of digits (up to a limit, of course) by pressing 2nd [FORMAT] and then a number specifying the number of desired digits after the decimal point or 9 for floating decimal.

2nd [CLR TVM] 1 2 N 7 I/YR 1 0 0 0 0 0 PV CPT FV

As for rounding, you can change the calculator display to any number of digits (up to a limit, of course) by pressing 2nd [FORMAT] and then a number specifying the number of desired digits after the decimal point or 9 for floating decimal.

Mar 14, 2012 | Texas Instruments BA-II Plus Calculator

Non-printing models (also applies to HR-8TE printing calculator):

1. Press [AC]

2. Hold [SET/%] key for about 2 seconds

3. Press [TAX+]

4. Input the tax rate

5. Press [SET/%]

Printing models (except HR-8TE):

1. Have calculator in "print" mode

2. Press [CA]

3. Hold [SET/%] key for about 3 seconds

4. Input the tax rate

5. Press [TAX+]

6. Press [SET/%]

^Top

Enter only the numerals, not the letters.

^Top

The attached chart shows comparisons of the different calculator models. This includes graphing, scientific and printing calculators. download the chart here

^Top

The HR-8TE/HR-8TM have a [DEC] key with F, 0, 2, and 5/4 over it, while many other calculators models have a switch labeled [F CUT 5/4].

The button or switch can control rounding off to a certain number of decimal places. F is floating point (no F indicator on screen), 0 rounds off to 0 places after decimal point, and 2 rounds off to 2 places after decimal point.

The 5/4 applies to either the 0 or 2 modes, and describes the type of rounding off that is performed. The calculator will round down if the digit after the one you are rounding to is 4 or lower, and round up if the digit is 5 or higher.

^Top

This switch is used to determine how many decimal places your answer is displayed in.

ADD (2) is often used for monetary calculations, so that it is not necessary to enter the decimal point. It is automatically placed two decimal places from the end for cents. For example, entering 123 will display as 1.23.

^Top

This is a markup on price procedure. The formula is as follows:

Markup%=(Markup Price-Cost)/(Markup Price)

^Top

Make sure that you are following the correct procedure.

Adding 10%: 200 [×] 10 [%] [+]

Subtract 10%: 200 [×] 10 [%] [-]

^Top

AP Calculus requires a graphing calculator.

Any graphing or scientific calculator is permitted on the following as long as it does not have a QWERTY keyboard, electronic writing pad or a pen-input/stylus-driven interface:

PSAT/NMSQT, SAT I

SAT II Math, IC & IIC

AP Statistics (graphing expected)

AP Chemistry

AP Physics

May 27, 2011 | Casio Parts Cash Register PC Desktop

press 2nd F the F<-->E, then the number of places (1-9) that youd like to be shown in calculations. fixed mine :)

May 09, 2011 | Vacuums

The manual for the Canon P1-DHV is online at http://www.usa.canon.com/app/pdf/calculator/P1-DHV_G_USA_HWB.pdf>.

When the display shows "5/4", the calculator is doing 5/4 rounding which means: 5 or above round up, 4 or below round down. To control rounding press the "5/4" key.

When the display shows "E" the calculator could not complete a calculation. It can be because of dividing by 0, or because the total exceeded 1 trillion, or because the operator entered calculations faster than the calculator could complete them. Press the CI/C key to clear it.

I can't explain why you are not getting a total on the tape. Try the following example from the manual exactly as shown, and let me know if your tape shows the total.

When the display shows "5/4", the calculator is doing 5/4 rounding which means: 5 or above round up, 4 or below round down. To control rounding press the "5/4" key.

When the display shows "E" the calculator could not complete a calculation. It can be because of dividing by 0, or because the total exceeded 1 trillion, or because the operator entered calculations faster than the calculator could complete them. Press the CI/C key to clear it.

I can't explain why you are not getting a total on the tape. Try the following example from the manual exactly as shown, and let me know if your tape shows the total.

- Clear the calculator (press [CI/C])
- Choose 5/4 rounding (press [5/4] until "5/4" displays)
- Choose add mode (press [DEC] until "A" displays)
- Choose cost-sell-margin mode (press [B-T] until "B" displays)
- Turn printer on (press [PRINT] until "PRINT" displays)
- To calculate: $12.55 + $15.75 - $5.30
- Key in: 1255 [+] 1575 [-] 530 [=]
- Tape shows: [0. C] ... [12.55 +] ... [15.75 -] ... [5.30 =] ... [23.00 *]

Apr 07, 2011 | Office Equipment & Supplies

You cannot. You must choose either round up, round down or round off (5/4) position, and then set the decimals switch. You would usually use round off (5/4) and decimal set to 2.

Apr 05, 2011 | Canon P170-DH Calculator

You must have accidently set the calculator to round your answers. To fix this, click the MODE key, scroll down to FLOAT, and click ENTER.

Mar 03, 2011 | Sharp EL738C Scientific Calculator

Press MODE to bring up the mode screen. Use the arrow keys to move to the second line and highlight "FLOAT" to show all nonzero digits or select the number of digits you want, then press ENTER. Press 2ND [QUIT] to exit the mode screen.

Jan 26, 2011 | Texas Instruments TI-84 Plus 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

The [MODE] key can be used to select the modes described below.

Important! The following is a general explanation of Scientific Calculator modes. Note that your calculator may not include all of the modes described here.

1) Calculation Modes

Before performing a calculation, you first need to select the appropriate calculation mode.

COMP: Basic arithmetric calculations

(arithmetic operations, trigonometric functions, etc.)

COMPLEX: Complex number calculations

SD: Single-variable statistical calculations

(sample standard deviation, etc.)

LR or REG: Paired-variable statistical calculations

(linear regression statistical calculations, etc.)

BASE or BASE-n: Binary, octal, decimal, hexadecimal number system calculations

MAT: Matrix calculations (determinants, etc.)

VCT: Vector calculations

EQU: nth degree equations, simultaneous equations

2) Display Settings

Use these settings to control how calculation results are displayed.

Note that changing the Fix and Sci settings does not affect internal calculation results.

Norm: Exponential display format and cancels the currently configured Fix and Sci settings.

Fix: Specifies a fixed number of digits to the right of the decimal place.

Sci: Specifies a fixed number of significant digits.

3) Angle Unit Setting

(90°=?/2 radians=100 grads)

Deg: Degrees

Rad: Radians

Gra: Grads

4) Engineering Mode

Use this mode when you want to input and perform calculations using engineering symbols.

Please rate this response . .

Important! The following is a general explanation of Scientific Calculator modes. Note that your calculator may not include all of the modes described here.

1) Calculation Modes

Before performing a calculation, you first need to select the appropriate calculation mode.

COMP: Basic arithmetric calculations

(arithmetic operations, trigonometric functions, etc.)

COMPLEX: Complex number calculations

SD: Single-variable statistical calculations

(sample standard deviation, etc.)

LR or REG: Paired-variable statistical calculations

(linear regression statistical calculations, etc.)

BASE or BASE-n: Binary, octal, decimal, hexadecimal number system calculations

MAT: Matrix calculations (determinants, etc.)

VCT: Vector calculations

EQU: nth degree equations, simultaneous equations

2) Display Settings

Use these settings to control how calculation results are displayed.

Note that changing the Fix and Sci settings does not affect internal calculation results.

Norm: Exponential display format and cancels the currently configured Fix and Sci settings.

Fix: Specifies a fixed number of digits to the right of the decimal place.

Sci: Specifies a fixed number of significant digits.

3) Angle Unit Setting

(90°=?/2 radians=100 grads)

Deg: Degrees

Rad: Radians

Gra: Grads

4) Engineering Mode

Use this mode when you want to input and perform calculations using engineering symbols.

Please rate this response . .

Sep 08, 2009 | Casio MS-80TV Scientific Calculator

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