Question about Texas Instruments TI-30XA Calculator

# Percentage function Please explain how to engage the %/2 key for my Ti- 30XA calculator

Posted by on

• Level 2:

An expert who has achieved level 2 by getting 100 points

MVP:

An expert that got 5 achievements.

Governor:

An expert whose answer got voted for 20 times.

Hot-Shot:

An expert who has answered 20 questions.

• Expert

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

Posted on Dec 31, 2008

Hi,
a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
Goodluck!

Posted on Jan 02, 2017

×

my-video-file.mp4

×

## Related Questions:

### How do i plug in ((6^2+7.77^2+4^2)/(2x6x7.77)) in a TI-30XA calculator?

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 =

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

### Hi, how do i calculate log^-1(-2) on my ti-30xa? thank u.

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.

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

### Hi, how do i calculate log^-1 on my ti-30xa? for example, in order to calculate log^-1(-2), what do i do? thank you.

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

### How can I find the square root of 39 on my ti-30xa? Also I would like to know how to find the cube of 9482... Help

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 =

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

### Okay so i am using a TI-30XA What is the button on this calculator for (Prb) ??

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

### How do I find the carrot key on my TI-30XA?

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:
E.g. to calculate 2^8, enter

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

### How do I do a factorial problem on a TI-30XA? for example 52!/5!

Two easy ways.

1. You can use the factorial function, which is the shifted function of the 3 key. Calculate 52! and divide it by 5!.
2. 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

### Finding a cube root on 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

## Open Questions:

#### Related Topics:

158 people viewed this question

Level 3 Expert

Level 2 Expert