Question about Texas Instruments TI-84 Plus Calculator

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This is not an error. .001 multiplied by .001 is 1E-6.

If the absolute value of a number is less than .001, the calculator will always display it in scientific notation. 1E-6 is interpreted as 1 times 10 to the minus sixth power.

Posted on Oct 11, 2010

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Posted on Jan 02, 2017

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Let's do the preocess so it will work on any calculator.

As an example, convert 68 from decimal to binary.

The decimal columns are 10^0, 10^1, 10^2, 10^3, etc.

The binary columns are 2^0, 2^1, 2^2, 2^3, etc.

Flipping to the normal left to right, we get 2^6, 2^5, 2^4, 2^3, 2^2, 2^1, 2^0.

64 32 16 8 4 2 1

We divide our number, 68, by 64, and get 1 with a remainder of 4. We next divide our remainder by 32, 16, 8, and finally 4, where we get 1 with no reminder.

In binary, this works out to 1000100. To check, we multiply the ones by the respective column values and get 64 + 4 = 68.

Good luck.

Paul

As an example, convert 68 from decimal to binary.

The decimal columns are 10^0, 10^1, 10^2, 10^3, etc.

The binary columns are 2^0, 2^1, 2^2, 2^3, etc.

Flipping to the normal left to right, we get 2^6, 2^5, 2^4, 2^3, 2^2, 2^1, 2^0.

64 32 16 8 4 2 1

We divide our number, 68, by 64, and get 1 with a remainder of 4. We next divide our remainder by 32, 16, 8, and finally 4, where we get 1 with no reminder.

In binary, this works out to 1000100. To check, we multiply the ones by the respective column values and get 64 + 4 = 68.

Good luck.

Paul

Feb 28, 2016 | Casio FX-85GT Plus Scientific Calculator...

Two alternatives:

Press SHIFT MODE 6 then a digit greater than 2 to specify the desired number of digits to the right of the decimal point. For example, of you select 3 the number will be displayed rounded off to 0.004 .

Press SHIFT MODE 9 2 to select the NORM2 mode.

Be aware that in any mode if the magnitude of the number drops below 10^-9 then the calculator will automatically switch to scientific mode. The calculator can't display more than nine digits after the decimal point---the display just isn't big enough.

Press SHIFT MODE 6 then a digit greater than 2 to specify the desired number of digits to the right of the decimal point. For example, of you select 3 the number will be displayed rounded off to 0.004 .

Press SHIFT MODE 9 2 to select the NORM2 mode.

Be aware that in any mode if the magnitude of the number drops below 10^-9 then the calculator will automatically switch to scientific mode. The calculator can't display more than nine digits after the decimal point---the display just isn't big enough.

May 17, 2013 | Casio FX-115ES Scientific Calculator

Press SHIFT [MODE] to bring up the mode screen. Press 8 for NORM, then 2.

Bear in mind that if the magnitude of the number is too large or too small the calculator will switch to scientific notation anyway. For example, if a number has twenty leading zeros then it won't fit on the display unless it displays it as a power of ten to the negative twenty.

Bear in mind that if the magnitude of the number is too large or too small the calculator will switch to scientific notation anyway. For example, if a number has twenty leading zeros then it won't fit on the display unless it displays it as a power of ten to the negative twenty.

Apr 02, 2012 | Casio Office Equipment & Supplies

None of these solutions answer his question. When converting a fraction or any number with decimal places to Binary, the TI-89 gives "Error: Domain error." For example, entering .6875 [2ND][MATH][BASE][BIN] does not work. I haven't found a way to do it with built in functions. In order to do these types of conversions, I use the following method.

Convert: 0.6875 to Binary

- left of decimal is a 0, so write down a 0, then a decimal point: (0.)

- multiply .6875 x 2 = 1.375 left of decimal is 1, write a 1: (0.1)

- drop the 1 and multiply .375 x 2 = .75 left of decimal is 0. write a 0: (0.10)

- multiply .75 x 2 = 1.5 left of decimal is 1, write a 1: (0.101)

- drop the 1, multiple .5 x 2 = 1. left of decimal is 1, write a 1: (0.1011).

- since there is no more fraction, the final answer is (0.1011). Hope this helps.

Convert: 0.6875 to Binary

- left of decimal is a 0, so write down a 0, then a decimal point: (0.)

- multiply .6875 x 2 = 1.375 left of decimal is 1, write a 1: (0.1)

- drop the 1 and multiply .375 x 2 = .75 left of decimal is 0. write a 0: (0.10)

- multiply .75 x 2 = 1.5 left of decimal is 1, write a 1: (0.101)

- drop the 1, multiple .5 x 2 = 1. left of decimal is 1, write a 1: (0.1011).

- since there is no more fraction, the final answer is (0.1011). Hope this helps.

Jan 27, 2012 | Texas Instruments TI-89 Calculator

Press the MODE button until the screen shows: [Fix Sci Norm] for the display mode, then press the number corresponding to Norm (ie 3 for Normal) then either 1 or 2. Display mode Norm1 shows numbers that are less than 1 in scientific mode, whereas mode Norm2 retains decimal format where is fits on the display.

Nov 22, 2011 | Casio fx-300ES Calculator

Step 1: Find a number you can multiply by **the bottom of the fraction** to make it 10, or 100, or 1000, or any 1 followed by 0s.
Step 2: Multiply both top and bottom by that number.
Step 3. Then write down just the top number, putting the decimal place in the correct spot (one space
from the right for every zero in the bottom number)
Example 1: Express 3/4 as a Decimal
Step 1: We can mulitply 4 by 25 to become 100

Step 2: Multiply top and bottom by 25:

**×25**
**3**
** = **
**75**

**4**
**100**
**×25**
Step 3: Write down 75 with the decimal place 2 spaces from the right (because 100 has 2 zeros);

Answer = 0.75

Example 2: Express 3/16 as a Decimal Step 1: We have to mulitply 16 by**625** to become 10,000

Step 2: Multiply top and bottom by 625:

**×625**
**3**
** = **
**1,875**

**16**
**10,000**
**×625**
Step 3: Write down 1875 with the decimal place 4 spaces from the right (because 10,000 has 4 zeros);

Answer = 0.1875

Example 2: Express 1/3 as a Decimal Step 1: There is no way to multiply 3 to become 10 or 100 or any power of 10, but we can calculate an**approximate** decimal by choosing
to multiply by, say, 333

Step 2: Multiply top and bottom by 333:

**×333**
**1**
** = **
**333**

**3**
**999**
**×333**
Step 3: Now, 999 is *nearly* 1,000, so let us write down 333 with the decimal place 3 spaces from the right (because 1,000 has 3 zeros):

Answer = 0.333 (accurate to only 3 decimal places !

Step 2: Multiply top and bottom by 25:

Answer = 0.75

Example 2: Express 3/16 as a Decimal Step 1: We have to mulitply 16 by

Step 2: Multiply top and bottom by 625:

Answer = 0.1875

Example 2: Express 1/3 as a Decimal Step 1: There is no way to multiply 3 to become 10 or 100 or any power of 10, but we can calculate an

Step 2: Multiply top and bottom by 333:

Answer = 0.333 (accurate to only 3 decimal places !

Sep 22, 2009 | Black & Decker Juicers

The calculator has several decimal display formats: FIX, SCI, NORM and ENG.

Here are examples of calculations with different formats and how to set them.

It may be a good idea for a user to get accustomed to the scientific display format, because it is the one most calculators adopt when the result to be displayed is too large or too small--when there are not enough places on the screen to display the result.

To help you with the power of 10 notation

1 billion =1000 000 000 =1 E 09 (9 zeros after 1 >> exponent 9)

1 million=1 000 000 = 1 E 06 (6 zeros after 1 >> exponent 6

1 thousand= 1000 =1 E03 (3 zeros after 1 >> exponent 3)

One= 1 = 1 E0

One tenth = 1/10 =0.1: the 1 is ONE position after the decimal mark>> exponent -01

One hundredth =1/100 =0.01 the 1 occupies the 2ND position to the right of the decimal point, exponent -02

etc.

1/1000 =0.001 = 1E-03

1/10000=0.0001=1E-04 (1 in 4th position to the right of decimal mark)

1/1000000=0.000001 = 1E-06 (1 in 6th position to the right of decimal mark)

1E-09 =0.000000001 : the 1 is in the 9th position to the right of decimal mark.

Here are examples of calculations with different formats and how to set them.

It may be a good idea for a user to get accustomed to the scientific display format, because it is the one most calculators adopt when the result to be displayed is too large or too small--when there are not enough places on the screen to display the result.

To help you with the power of 10 notation

1 billion =1000 000 000 =1 E 09 (9 zeros after 1 >> exponent 9)

1 million=1 000 000 = 1 E 06 (6 zeros after 1 >> exponent 6

1 thousand= 1000 =1 E03 (3 zeros after 1 >> exponent 3)

One= 1 = 1 E0

One tenth = 1/10 =0.1: the 1 is ONE position after the decimal mark>> exponent -01

One hundredth =1/100 =0.01 the 1 occupies the 2ND position to the right of the decimal point, exponent -02

etc.

1/1000 =0.001 = 1E-03

1/10000=0.0001=1E-04 (1 in 4th position to the right of decimal mark)

1/1000000=0.000001 = 1E-06 (1 in 6th position to the right of decimal mark)

1E-09 =0.000000001 : the 1 is in the 9th position to the right of decimal mark.

Jul 24, 2009 | Casio FX-260 Calculator

If got to do with the mode settings. Usually MODE fix in other lower version of calculator. The combination can be MODE FIX 0 for no trailing zero's if MODE FIX ONE then if will 0.0 or one zero then shifting the settings to NORMAL mode and at DEG mode.

Jun 26, 2009 | Casio FX-115ES Scientific Calculator

Hi - I think you have the "Grand Total" switch set. For normal operation set the switch to the central position as below:

Hi - You can download the manual from the link underlined in blue below:

EL-1801P

Please update the question & let us know if the information given was useful to you - Good Luck!

Hi - You can download the manual from the link underlined in blue below:

EL-1801P

Please update the question & let us know if the information given was useful to you - Good Luck!

Jul 14, 2008 | Sharp EL-1801P Calculator

If not in the time mode, press mode to get to the time mode.

While in the time mode, press and holdlap/rst for two seconds.

The seconds will begin to blink.

Press st/stop to reset seconds to zero

Press mode and the minutes will begin to blink.

Press st/stop to advance the minutes

Press mode and the hour will begin to blink.

Press st/stop to advance the hour

Press mode and the day and date will appear. The day will blink.

Press st/stop to advance the day.

Press mode and the month will begin to blink.

Press st/stop to month the minutes.

Press lap/rst to return to normal state with you new settings. You can hit lap/rst to return to normal state at any time in the process, for example if you only want to set the minutes, just hit lap/rst after you set the minutes.

While in the time mode, press and holdlap/rst for two seconds.

The seconds will begin to blink.

Press st/stop to reset seconds to zero

Press mode and the minutes will begin to blink.

Press st/stop to advance the minutes

Press mode and the hour will begin to blink.

Press st/stop to advance the hour

Press mode and the day and date will appear. The day will blink.

Press st/stop to advance the day.

Press mode and the month will begin to blink.

Press st/stop to month the minutes.

Press lap/rst to return to normal state with you new settings. You can hit lap/rst to return to normal state at any time in the process, for example if you only want to set the minutes, just hit lap/rst after you set the minutes.

Apr 28, 2007 | Timex 1440 Nylon watch

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