Texas Instruments TI-30 XIIS Calculator - Answered Questions & Fixed issues

1. Press the "2nd" key.
2. Press the x2 function key.
3. Enter the number.
4. Press the close-bracket key ).
5. Press the ENTER = key.

Here:
http://education.ti.com/downloads/guidebooks/scientific/30xii/30xiiqrg-eng.pdf
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I believe factors can be calculated on any basic calculator. Starting with 1, increasing by 1 until you get to square root (number) + 1 Let's do an example. 28 square root (28)+1 = 6 Factors 1, 28/1=28 2, 28/2=14 14*2 - 28 = 0 (when you divide, you get no decimal) 3, 28/3=9.33333 - not a factor - doesn't go in evenly 4, 28/4 =7 5, 28/5=5.6 - not a factor - doesn't go in evenly 6, 28/6=4.66666 - not a factor So now we can list our factors - 1, 28, 2, 14, 4, 7 Putting them in order, we get 1, 2, 4, 7, 14 and 28. Good luck, Paul

pKa=-logKa -pKa=logKa 10^(-pKa)=10^(log(Ka))=Ka Ka=10^(-3.89) I don't know where you got the value you give but here is what my calculator finds.

The inverse of a trigonometric function shares the same physical key as the function itself. Press 2nd then the function key.

Using any calculator, multiply it by 100. I think of "per cent" is "per 100" so you need to move to decimal two places to the right or multiply by 100. In this case, either way, we get 10%. Any questions, let me know. Good luck. Paul

This calculator has no e button, per se. To get the value of e, use the push "1", then "2nd" button, then the "LN" button (which is e raised to the power of x). With an x of 1, e to the first power is e.

Press the cubic root key 3Root and enter the fraction enclosed in parentheses. 3Root((a/b))

There isn't one. You have to use the old eyeball. If the number on the screen is positive, leave it alone. If it's negative, change the sign.

Exponents of 10 are entered by pressing [2nd][X^-1] (EE). For powers of any base, enter the base, press the [^] (below PI) then enter exponent. Use the (-) white key if exponent is negative.

You cannot manipulate radicals with this calculator. All radical results will be displayed as (approximate) decimal numbers.

Convert the speed from km / h to m/s. Change in speed = (Final speed (in m/s) - initial speed (0))/ 3.7 s The result is the average acceleration in m / s^2. 100 km /h = (100 000 m)/ (3600 s)= 27.7778 m/s

Yes. Press the PRB key then select "RAND."

0.021434375

1.53

Use the LOG button on the second row of the keyboard.

Use the ^ key above and left of the 7 key. For example, to raise 2 to the 3rd power, press 2 ^ 3 =

If you look at the keyboard you'll find the square root as the second function of the x^2 button, just to the left of the 7 button.

Press PRB right-arrow right-arrow

Divide both sides by 3 to find x x^3/3 = 9/3 x^=3 therefore 3^3=9