If I try to add 10% to 100, the answer i get 111.1111111111 - My input 100+10%, i am expecting 110, calculator gives me 111.1111111111

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SOURCE: Casio seem to have a problem with the percentage key

The issue is the fact that you are adding the %. You need to Multiply it by 1.1 instead of trying to add 10%. This is a wonky equation anyway, because your not specifying what you want to add 10% of. This is why you are getting a weird answer.

Posted on Jun 20, 2009

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SOURCE: Casio calculator MS-8TV

__SETTING YOUR TAX RATE__

you hold your set % button down for three seconds until set shows again, then hit tax rate button it shows your tax rate, change your tax rate then hit set your tax rate should be set.

cliff notes:

hold set% button

hit tax+ button

change the desired %

hit set done

Posted on Jan 11, 2008

SOURCE: calculating percentages

how can i change or fix an exchange rate in Xasio JF - 100TE calculator

Posted on Jul 10, 2008

SOURCE: my calculator will not let me add or subtract percentages.

It would appear most Casio’s have a similar problem I believe this could be a fault in their programming and am awaiting reply from Casio and some of its distribution outlets.

Posted on Jun 20, 2009

SOURCE: Hi, I have a Casio calculator fx-991MS giving me wrong answers!

Hello,

I am only looking for a plausible cause of the error, because I do not believe your calculator can make such a mistake. I think you **accidentally activated the Exponential display format** and did not pay attention to the small, raised -03 that came at the end of the number displayed. It is a common mistake for those not very familiar with Scientific or exponential notation.

Let us try to reset your calculator to the normal (floating point) format.

Press the [MODE] key a number of times until you reach a screen that has FIX, SCI, NORM and under each one a number (FIX 1, SCI 2), Norm 3). To have the number of decimal place you gave in your result (4 decimal digits), you press 1 to select Fix then 4.

Be aware that scientific calculators usually stop displaying results in floating point format ( 0.0000045 ) if the number is smaller then 0.001. So basically, 0.00099 will be displayed as 9.90-04, -04 being raised above the level, and in smaller size.

Hope it helps.

Posted on Oct 02, 2009

Testimonial: *"Thanks so much, its working now:) I thought I was going to have to buy a new calculator!"*

Could you post an example? Please provide the exact inputs you're giving it, the answer it's giving back, and the expected answer.

Oct 22, 2013 | Texas Instruments TI-84 Plus Calculator

Could you provide some details? The inputs, your exact keystrokes, the result, and the expected result, for starters.

Jul 28, 2013 | Texas Instruments BA-II Plus Pro...

This typically means that something you're inputted didn't follow what the calculator expected for a given input. This can happen if you put something in like "6++5" -- the calculator doesn't expect another function sign after "+", it expects something that has numerical value like a variable or an actual number! You can fix this by hitting [2] on the error screen, which will take you to the place where the calculator stumbled on the problem. From there, you can doublecheck what you typed in and try it again.

Mar 24, 2011 | Texas Instruments TI-84 Plus Calculator

i am giving the key input with an example..

example-

at 0, value is 300

at 50, value is 270

so how much at 30...

On 991MS,

Go in Reg mode, for doing that : press Menu,Menu, 2

Enter the values as follows,

0,300 and press M+ key on the calci

(Note: there is a "," in between 0 and 300)

then enter the following,

50,270 and press M+ key

now enter the following input exactly as displayed below:

(30) shift 2 > > > 2 =

you will get the answer as 282.

I hope you got it!!!

LOFT!!!

example-

at 0, value is 300

at 50, value is 270

so how much at 30...

On 991MS,

Go in Reg mode, for doing that : press Menu,Menu, 2

Enter the values as follows,

0,300 and press M+ key on the calci

(Note: there is a "," in between 0 and 300)

then enter the following,

50,270 and press M+ key

now enter the following input exactly as displayed below:

(30) shift 2 > > > 2 =

you will get the answer as 282.

I hope you got it!!!

LOFT!!!

Feb 22, 2011 | Casio FX-115ES Scientific Calculator

Aren't you getting -.98279 (a negative value)?

The tangent function (and the cotangent) are periodic, with a period of pi. The calculator will give you a result from -pi/2 to pi/2, while the Hawkes apparently is giving you a result from 0 to pi. The difference between 2.1588 and -.98279 is pi.

To make the calculator's result match Hawkes, if the (co)tangent gives you a negative value, simply add pi to it.

The tangent function (and the cotangent) are periodic, with a period of pi. The calculator will give you a result from -pi/2 to pi/2, while the Hawkes apparently is giving you a result from 0 to pi. The difference between 2.1588 and -.98279 is pi.

To make the calculator's result match Hawkes, if the (co)tangent gives you a negative value, simply add pi to it.

Jan 19, 2011 | Texas Instruments TI-84 Plus Calculator

You must enter 100+10%100 or 100+10%(100). This will give you the correct answer of 110.

Nov 25, 2009 | Texas Instruments TI-30X-IISTK Scientific...

I have a Casino MS-80S and yea, the percentage works different. As example to take 100 and subtract 10%, this is what I do: 100 X 10% - and then I get the answer 90 after I press the minus key. To add the percentage instead, 100 X 10% + will give me an answer of 110, after I press the plus key.

Apr 04, 2009 | Casio HR8TM Calculator

With an adding machine, which is what this is, you enter the number followed by the + or -. If you wanted to add 10+20, you would enter 10 then + then 20 then +. This would show your answer. If you are using the printer and you wish to see the final answer on the paper, hit the * key and your answer will print.

If you are subtracting, let's say 100-40, you would enter 100 then + then 40 then - then *. Adding machines expect you to enter long strings of numbers to total. You may have both positive and negative numbers. So, you always enter the number first followed by either positive + or negative -.

You might have 100 + 25 - 37 - 1 + 50. For that enter:

100+25+37-1-50+ then *

Different than a calculator but the same for all "adding machines". This machine should really be called an adding machine since that is the kind of input it is looking for.

If you are subtracting, let's say 100-40, you would enter 100 then + then 40 then - then *. Adding machines expect you to enter long strings of numbers to total. You may have both positive and negative numbers. So, you always enter the number first followed by either positive + or negative -.

You might have 100 + 25 - 37 - 1 + 50. For that enter:

100+25+37-1-50+ then *

Different than a calculator but the same for all "adding machines". This machine should really be called an adding machine since that is the kind of input it is looking for.

Jan 13, 2009 | Canon P23-DHV Calculator

Hello,

You may have guessed right. The presence of the parentheses makes the content of the parentheses evaluated first. So there is a loss of precision.

On the Ti92 I do 7*(-1/7)+1 and find 0.

But with Floating mode set at 12 decimal digits I get

1/7.=.142857142857.

Then .142857142857.*(-7) + 1 gives 2E-14.

Try to calculate pi*(-1/pi) +1 or e*(1/e)+1.

Hope it answers your question.

You may have guessed right. The presence of the parentheses makes the content of the parentheses evaluated first. So there is a loss of precision.

On the Ti92 I do 7*(-1/7)+1 and find 0.

But with Floating mode set at 12 decimal digits I get

1/7.=.142857142857.

Then .142857142857.*(-7) + 1 gives 2E-14.

Try to calculate pi*(-1/pi) +1 or e*(1/e)+1.

Hope it answers your question.

Sep 29, 2008 | Texas Instruments TI-86 Calculator

I've been searching for the solution to this problem, as well. Apperently, there's no user's manual for this calculator. I'm going to call Casio on Monday to see if they can send me some sort of instructions. (800)962-2746 or (609)395-0154

good luck!!

good luck!!

Oct 25, 2007 | Casio MS-80TE Calculator

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