Question about Casio FX-115ES Scientific Calculator

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Every time i type in a problem thats not an exact divsion problem it makes the answer a fraction not a decimal how do i fix this?

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To convert a single result to decimal, press SD. To have all results come out in decimal, press SHIFT MODE 2 to select the LineIO mode.

Posted on Oct 09, 2010

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On shift mode 2 the x10 power is on can't clear

Posted on Dec 05, 2010

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Okay, so I have a problem where I need to get what 25/3 is...when I put this into my ti-89 titanium from the home screen the only answer it gives me is 25/3, what is up with that? It won't do simple...


If you leaf through the manual with its 500 some pages you will diuscover that your last statement is not quite right.
The "problem" is that the calculator is configured to perform EXACT calculation where fractions are kept as fractions and radicals as radicals.

To have your fractions displayed as decimal numbers ALL THE TIME
Press [MODE][F2]
Use Arrow down to highlight [Exact/Approx
Use right arrow to unfold the menu list and select [3:Approximate]
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Press [ENTER] to save configuration

There are two other ways to convert an exact result into an approximate one
  1. If you enter 25./3 or 25/3. or 25/3. and press [ENTER] the fraction will be displayed as a decimal number (The dot is a decimal mark, and it instructs calculator to perform approximate calculations)
  2. If enter 25/3 without the decimal marks and press [Diamond][ENTER] the result will be decimal.

Feb 17, 2010 | Texas Instruments TI-89 Calculator

1 Answer

Answers in decimals


The calculator has two Input/Output modes, MthIO and LineIO. In MthIO the results are displayed as fractions or as radicals or a mixture of fractions and radicals. What it means, is that in MthIO the calculator does exact calculations. Radicals in denominators are gotten rid of by rationalization, fractions are reduced to the same denominators before addition or subtraction. Fractions are reduced to simplest form.

In LineIO all results are displayed as decimal numbers.

If a result is exact (fractions and radicals) it can be changed to decimal form by pressing the S To D key, the one above the DEL key.

MthIO is the default IO mode. To set it, press SHIFT MODE and select 1:MthIO. To set LineIO as the IO mode, press SHIFT MODE and select 2:LineIO

Jan 20, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

TI-89 decimal to fraction


Here is what you do:

1) Press the Mode button.
2) Scroll down the list that appears until you find "Exact/Approx".
3) Change the setting for "Exact/Approx" to Exact.
4) Press enter to save the settings change.

You have three possible settings for "Exact/Approx":
1) Auto - The calculator will try to determine the best format.
2) Exact - The calculator will always give the answer in fraction form.
3) Approximate - The calculator will always give the answer in decimal form.

Nov 15, 2009 | Texas Instruments TI-89 Calculator

1 Answer

When I divide the answer is in fraction form not decimal form how do i get it back


There are two options.

1) Whenever you want the answer in decimal form, place a decimal after at least one of the numbers.
For example: instead of using (1/2) use (1/2.)

2) Press the "Mode" button. Scroll down the list that appears until you find "Exact/Approx". If you set it to "Approximate", then it will always give the answer in decimal form. If you set it to "Exact", it will give the answer in fraction form.

Nov 12, 2009 | Texas Instruments TI-89 Calculator

2 Answers

Cant get answers in decimal format, I would like to set up my casio fx83es so that the answer is in decimal format all the time.


Hello,
To make sure that results are always in decimal format, put a decimal mark (point) at the end of one integer.
ex: 1./2 or 1/2. or 1./2. display as 0.5, so does 1. + 1/2
To convert from decimal to fraction and from fraction to decimal press a b/c
To convert from proper to improper fractions use [SHIFT][d/c]
Hope it helps.

Oct 04, 2009 | Casio fx-300ES Calculator

2 Answers

Reset calcuator


try this, press shift mode, then line 10. It will make it permanent. the answer will always be in decimals. if you are using a casio with ES models.

Jun 14, 2009 | Office Equipment & Supplies

6 Answers

I want the answer to be in decimal form.


Press "MODE"
then scroll down to "Exact/Approx"
select "approximate"

this will have your answers in decimal as default

Oct 16, 2007 | Texas Instruments TI-89 Calculator

2 Answers

My TI-89 cant do simple calculations.


You have to set how the calculator handles numbers. To do this follow these steps: 1. Press the 'MODE' button. This brings up the calculator's main settings page. 2. Scroll down until you reach a field titled 'Exact/Approx...'. This is the setting for how the calculator handles numbers, whether it will show the exact answer (which is usually in fraction format) or whether it will show an approximate number (which will be in decimal format). 3. Press the right arrow which will bring up the options for that setting. You must now choose between three ways of handling numbers: -'1:AUTO' will determine which type of answer the calculator will give based on what numbers you want it to calculate (e.g. if you want an answer in decimal format just add a decimal somewhere in your problem). -'2:EXACT' will automatically display all answers in either whole number format or in fraction format. -'3:APPROXIMATE' will automatically display all answers in decimal format. 4. After you have selected one of those options press enter one more time to get out of the 'MODE' dialogue and return to the 'HOME' screen. Now try a problem and see what happens. Personally I like using 'AUTO' because then I don't have to keep returning to 'MODE' when I want either or. Hope this helped, I had the same problem when I first started using the TI-89.

Sep 18, 2007 | Texas Instruments TI-89 Calculator

2 Answers

Can not get nothing but fractions for answer


You have to set how the calculator handles numbers. To do this follow these steps: 1. Press the 'MODE' button. This brings up the calculator's main settings page. 2. Scroll down until you reach a field titled 'Exact/Approx...'. This is the setting for how the calculator handles numbers, whether it will show the exact answer (which is usually in fraction format) or whether it will show an approximate number (which will be in decimal format). 3. Press the right arrow which will bring up the options for that setting. You must now choose between three ways of handling numbers: -'1:AUTO' will determine which type of answer the calculator will give based on what numbers you want it to calculate (e.g. if you want an answer in decimal format just add a decimal somewhere in your problem). -'2:EXACT' will automatically display all answers in either whole number format or in fraction format. -'3:APPROXIMATE' will automatically display all answers in decimal format. 4. After you have selected one of those options pres enter one more time to get out of the 'MODE' dialogue and return to the 'HOME' screen. Now try a problem and see what happens. Personally I like using 'AUTO' because then I don't have to keep returning to 'MODE' when I want either or. Hope this helped, I had the same problem when I first started using the TI-89.

Sep 05, 2007 | Texas Instruments TI-89 Calculator

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