Question about Sharp EL-738 Scientific Calculator

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The negative sign is the same as the minus sign. It is above the [+] and below [x] . Using the minus button will have the same effect and will negate the number you press after it.

Posted on Mar 21, 2011

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Posted on Jan 02, 2017

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Rules for multiplying signed numbers: like signs positive, unlike signs, negative, so your answer is negative.

Sep 19, 2014 | Computers & Internet

See captured image below. You have to use (-) sign

May 26, 2014 | Texas Instruments TI-84 Plus Calculator

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 **+/-**

The change sign key may be marked

Nov 08, 2013 | HP 35s Scientific Calculator

The plus sign in front of a number does not need to be written. However if the number is negative, the sign must be used. The calculators do have a key to make a number negative. It is usually marked as** (-)** where the negative sign - is than smaller the minus sign for the subtraction operation. On other calculators, the key is marked as **+/-.** You must be careful how to use it: it must be the first sign of any expression.

Sep 30, 2013 | Sharp el-531x scientific calculator

I think what you did was use the minus sign instead of the negative sign, on that calculator, the two are not interchangeable. I purposely used the minus sign just now and also got a syntax error, but it looks like it works with the negative sign (-) located under the 3 button.

May 08, 2011 | Texas Instruments TI-30 XIIS Calculator

for getting negative power either you divide the no by same power in positive which you want in negative or there is small negative sign in the upper half of the calculator which you can use if you want to put a nagative sign before a number.

Apr 13, 2010 | Casio FX-300MS Calculator

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

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.

**If x is the multiplication sign**

8[x] [(] (-)1

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.

8[x] [(] (-)1

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

Your calculator will square a number before it applies the negative sign, so what you're actually doing is squaring 2, then applying the - sign to your answer. You need to put the -2 in parenthesis, so (-2)^2. That will give you 4.
Hope this helps!

Nov 12, 2008 | Texas Instruments TI-83 Plus Calculator

Dec 04, 2013 | Sharp EL-738 Scientific Calculator

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