Question about Texas Instruments TI-30XA Calculator

Use the EE key, just as for positive exponents. Just make sure you use the +- key (next to the decimal point key) to enter negative values, not the - key which is for subtraction.

Posted on Nov 05, 2010

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Posted on Jan 02, 2017

They're both giving you the same number.

1.953125E-03 means 1.953125 * 10^-3, which is 0.001953125 .

1.953125E-03 means 1.953125 * 10^-3, which is 0.001953125 .

Oct 14, 2014 | Casio FX-9750GII Graphing Calculator

You will find the description of all potential errors in the manual.

Aug 30, 2014 | Texas Instruments TI-30X IIS Scientific...

You don't. The 30X IIs runs on both solar power and a 2025 lithium battery. If you need to replace the 2025 battery, see this.

Sep 29, 2012 | Texas Instruments TI-30X IIS Scientific...

1*10^(-3)

Because you're using -3 as an exponent, you need to put the whole thing in the parentheses.

Because you're using -3 as an exponent, you need to put the whole thing in the parentheses.

Jun 18, 2011 | Texas Instruments TI-30X-IISTK Scientific...

The +/- key on the ti-30x is to let the calculator know whether the number you are using is positive or negative. EX: 4 3 2 1 = positive -4 -3 -2 -1 = negative

Mar 08, 2011 | Texas Instruments Office Equipment &...

Use the (-) key to the right of the decimal point. Use this key for entering any negative number.

Jul 07, 2010 | Texas Instruments TI-30X-IISTK Scientific...

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...

Hello,

Entering the keys and number as you write it can be done with enough parenthees to make sure calculator does what we intend it to.

But I would rather use the commutativity propertie of multiplications to same me some extra ().

Step 1

4 [(+/- change sign)][2nd][10 to the x] [ X ]6.1923 [=]

Step2

[x^2][=]

I first calculate the product 6.1928 x 10^-4 then take the square of the result. Because you can never be sure that the calculator takes 6.1923 to power 2 then multiply or multiply 6.1928 x 10^-4 and raise to power 2.

You can force the calculator with an opening parenthesis and a closing one but if you omit the ) and get an error, it may be hard to detect.

Hope it helps.

Entering the keys and number as you write it can be done with enough parenthees to make sure calculator does what we intend it to.

But I would rather use the commutativity propertie of multiplications to same me some extra ().

Step 1

4 [(+/- change sign)][2nd][10 to the x] [ X ]6.1923 [=]

Step2

[x^2][=]

I first calculate the product 6.1928 x 10^-4 then take the square of the result. Because you can never be sure that the calculator takes 6.1923 to power 2 then multiply or multiply 6.1928 x 10^-4 and raise to power 2.

You can force the calculator with an opening parenthesis and a closing one but if you omit the ) and get an error, it may be hard to detect.

Hope it helps.

Sep 15, 2009 | Texas Instruments TI-30 XIIS Calculator

You can download the guidebook for this calculator from TI here.

From page 16:

To enter a number in scientific notation:

1) Enter up to 10 digits for the base (mantissa). If negative, press the +/- key. (The key has two curvy arrows between the + and - but I can't do that on my keyboard.)

2) Press the EE key.

3) Enter a 1 or 2-digit exponent. If negative, press +/- either before or after entering exponent.

They give the example 1.2345 +/- EE +/- 65 which would display -1.2345 -65.

From page 16:

To enter a number in scientific notation:

1) Enter up to 10 digits for the base (mantissa). If negative, press the +/- key. (The key has two curvy arrows between the + and - but I can't do that on my keyboard.)

2) Press the EE key.

3) Enter a 1 or 2-digit exponent. If negative, press +/- either before or after entering exponent.

They give the example 1.2345 +/- EE +/- 65 which would display -1.2345 -65.

Apr 07, 2009 | Texas Instruments TI-30XA Calculator

On the bottom of the calculator near the zero and the enter key it has the symbol
(-) that is a negative number symbol

Nov 22, 2008 | Texas Instruments TI-30XA Calculator

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