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Find sign change key - Texas Instruments TI-84 Plus Calculator

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The change sign key is the one marked with (-), a minus sign between parentheses. It is on the last row of keys, to the right of the dot, and below the 3 key.

Posted on May 13, 2010

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1 Answer

Minus sign display problem


Calculators have two similar signs: the regular minus sign for subtraction, and the negation (change sign) sign. When applied, the latter changes the sign of the quantity to which it is applied. The minus sign - for subtraction is on the central line, the negation sign is smaller and somewhat raised above the center line.
The change sign key may be marked (-) , (+/-), or +/-

Nov 08, 2013 | HP 35s Scientific Calculator

1 Answer

Hi I'm trying to find the reciprocal sign on my Casio fx-300es


If you mean "1-over-x" then it's the key marked "x-superscript-negative-one" just right and below the big round cursor pad. If you mean "reciprocal sign" more commonly referred to as "negative" or "change-sign" then it's the key marked "(-)" two keys above the "7" key.

Aug 09, 2011 | Casio fx-300ES Calculator

1 Answer

Hi i cant get the at @ sign on the acer iconia tab w500


Hi, On most key boards the shift key and the 2 button make the @ sign. Look where the @ sign is on your key board. You might be looking for a new key board. What do you have above the 2 ?
In the Fonts you maybe able to change to the @ sign. Good luck.

Jun 15, 2011 | Acer NSK8458AN Keyboard

2 Answers

Where is the negative button, I need to use negative numbers?


There is a key with a "+" sign, 2 arrows and a "-" sign. After you enter a number, hit this key to change it's sign. Hope this helps. Good luck!

Mar 04, 2010 | Texas Instruments TI-30XA Calculator

1 Answer

How to perform log and - log function


To use the log function you press the [LOG] key in the middle of the first row of keys.
To use it.
Enter the number the log of which you want to calculate (must be positive)
Press the [LOG] key
Result is displayed.

Ex log(33.54)
33.54 [LOG] result is 1.5255

Once a logarithm has been calculated, use the [+/-] key, the change sign key located between the [.] and the [=] keys, on the bottom row of keys. You must press the change sign after you have calculated the logarithm.

Mar 01, 2010 | Texas Instruments TI-30XA Calculator

2 Answers

How do I input a mumber in scientific notation?


The structure of a number in scientific notation is as follows
one digit [decimal mark] several digits power of 10 (- sign if needed) up to two digits for the exponent.
d.ddddd [10^] (-) dd

To enter a number in scientific notation you need to use the [EXP] key, between the [.] and the [=] sign, on the bottom row of keys.

Ex: Avogadro's number (do not worry if you do not know what it represents)
Na= 6.02 x10 ^23
6.02 [EXP] 23 [=]

Electron charge 1.6 x10 ^(-19)
1.6 [EXP] [+/-] 19 [=]
The [+/-] key is the change sign key, in the first column of keys, between the fraction key [a b/c] and the [7] key

Jan 14, 2010 | Casio FX-260 Calculator

1 Answer

How do I ente 8x - 1 over 10 on my TI 84 plus silve edition


Hello,
I am not sure what the cross (x) means: is it a multiplication or the variable x, so I took a screen capture of both cases.

The top case is obtained as follows the asterisk is the multiplication sign to thr right of digit 9; the small minus is the change sign key the minus sign in parentheses under digit 3 and to the left of ENTER key.; the forward slash is the division sign, above the multiplication sign.
This small minus called change sign makes a positive number negative and a negative number positive, hence its name. If your expression starts with a negative sign that is the one to use. Use it also for negative exponents.

As you can see the result is -.8. Notice how the - before the dot is small with respect to the regular minus, as in the last expression.

For the last expression on the screen capture, there is nothing special, except that you have two ways to enter the variable X.

1. Press [ALPHA] [STO->]
2. Press the key [X,T, Theta, n] to the right of the green [ALPHA] key.

Hope it helps.

febc94d.jpg

If x is the multiplication sign
8[x] [(] (-)1

Oct 06, 2009 | Texas Instruments TI-84 Plus Calculator

1 Answer

Change sign key? +/-


Hello,
It is the key with a minus sign enclosed in parentheses (-)
Hope you find it.

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

1 Answer

How do I use the Euro key


Press down the shift key then press the 4 key, if this does not work and comes back with the $ sign then you may need to change your keyboard layout settings. You can do this by going to control panel>regional and language options>keyboards and languages and change the layout to the relevant option to enable the euro sign.

Nov 17, 2008 | HP Pavilion dv4000 Notebook

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