Question about Texas Instruments TI-30XA Calculator

Pick up the small instruction booklet here and look at page 4, the "%" key has 4 functions...

http://education.ti.com/educationportal/downloadcenter/SoftwareList.do?website=US&tabId=2&paneId=18#27

Posted on Dec 31, 2008

There should not be a problem: There are no complicated functions.

I suggest you do the calculation in steps

Step 1: Calculate the numerator 6^2+7.77^2+4^2=

The result will be stored in ANS memory, which you access by pressing the ANS key (either directly if marking is on the key, or by pressing 2nd followed by the key near which is the ANS marking).

Step 2: while the result is still displayed, press the division key, then a left parenthesis to enclose the denominator. Close the right parenthesis then press =

I suggest you do the calculation in steps

Step 1: Calculate the numerator 6^2+7.77^2+4^2=

The result will be stored in ANS memory, which you access by pressing the ANS key (either directly if marking is on the key, or by pressing 2nd followed by the key near which is the ANS marking).

Step 2: while the result is still displayed, press the division key, then a left parenthesis to enclose the denominator. Close the right parenthesis then press =

Apr 06, 2012 | Texas Instruments TI-30XA Calculator

The inverse of the log function is the power function.

For log in base 10 that inverse is 10 to a power of

More generally, let b be the base of the logarithm. If y=log_b (x) then x=b^y

For your case log=log_10, to calculate the inverse you perform 10^(-2)=0.01=1/100

On calculators the log in base 10 and its inverse share the same physical key. One is accessed directly, the other is the shifted key function.

For log in base 10 that inverse is 10 to a power of

More generally, let b be the base of the logarithm. If y=log_b (x) then x=b^y

For your case log=log_10, to calculate the inverse you perform 10^(-2)=0.01=1/100

On calculators the log in base 10 and its inverse share the same physical key. One is accessed directly, the other is the shifted key function.

Sep 09, 2011 | Texas Instruments TI-30XA Calculator

The inverse of the common log function is the power function with base 10 (10^). It shares the same physical key as the log. You acees the function by pressing [2nd] [log]

Sep 09, 2011 | Texas Instruments TI-30XA Calculator

Square root of 39: Press 3 9 [square-root] =

[square-root] is the key just to the left of the divide key.

Cube root of 9482: Press 9 4 8 2 2nd [cube-root] =

[cube-root] is the shifted function of the 0 key.

For other roots, you can use the [nth-root] function, the shifted function of the key above the divide key. For example, to calculate the fourth root of 16, press 1 6 2nd [nth-root] 4 =

[square-root] is the key just to the left of the divide key.

Cube root of 9482: Press 9 4 8 2 2nd [cube-root] =

[cube-root] is the shifted function of the 0 key.

For other roots, you can use the [nth-root] function, the shifted function of the key above the divide key. For example, to calculate the fourth root of 16, press 1 6 2nd [nth-root] 4 =

Aug 11, 2011 | Texas Instruments TI-30XA Calculator

There is no probability key on the 30Xa as there is on the 30XIIS. The shifted functions of the 8 and 9 keys will calculate the number of combinations and permutations, respectively. The shifted function of the 3 key will calculate the factorial. There is no random number generator.

May 09, 2011 | Texas Instruments TI-30XA Calculator

I assume you refer to the caret ^ symbol, sometimes used as an operator for exponentiation.

- for x^2 use the key [x²].
- for x^3 use [2nd] [x³] (alternate function of the [1] key).
- for all other exponents, use the key:

Jan 28, 2011 | Texas Instruments TI-30XA Calculator

It's the shifted function of the 2 key.

Dec 21, 2010 | Texas Instruments TI-30XA Calculator

Two easy ways.

- You can use the factorial function, which is the shifted function of the 3 key. Calculate 52! and divide it by 5!.
- You can use the nPr function, which the is the shifted function of the 9 key. 52!/5! is 52 nPr 47 (47 is 52-5).

Nov 11, 2010 | Texas Instruments TI-30XA Calculator

You can calculate cube roots by using the cube root function (the 2nd-shift of the 0 key). You can calculate arbitrary roots by using the x-root function (the 2nd-shift of the y^x key, just above the divide key).

May 27, 2010 | Texas Instruments TI-30XA Calculator

It's the 2ND shift of the "2" key.

Feb 05, 2010 | Texas Instruments TI-30XA Calculator

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