Question about Texas Instruments TI-30XA Calculator

# Incorrect multiplication i have an old ti-30xa, in the drawer for years. tried to use it & it seemed to be giving incorrect answers. tested 9 x 4 & it calcs 16. changing DEG to RAD doesn't make any difference here-- i think it's a different setting that's causing the error.

Posted by on

• Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

• Texas Instru... Master

Hello,
Use the Clear All button to get rid of the junk, then retry.
Hope it helps.

Posted on Sep 15, 2009

Hi,
A 6ya expert 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 repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
Good luck!

Posted on Jan 02, 2017

×

my-video-file.mp4

×

## Related Questions:

### I dont understand why I keep getting the wrong exponet in trying to figure out 1500nm divided by 10^9. the answer I get is 1.5 *10^-7 -but the answer is 1.5*10^-6. What am I doing wrong?

Without knowing exactly what you're doing I can't be sure, but I suspect you're entering the 10^9 as something like 1 0 EE 9 .

1 0 EE 9 gives you 10 * 10^9, which is 10^10. You should be doing this as 1 5 0 0 / 1 EE 9 = .

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

### Any sin, cos, or tan function problem always gives the incorrect answer. I can use my TI 55 that is 30 years old and get the correct answer, but my son's TI84 plus silver edition is incapable of giving the...

Make sure you have the proper angular mode set. The TI-84 can work with degrees or radians.

Press MODE to bring up the mode screen. Use the arrow keys to highlight either "Radian" or "Degree" on the third line and press ENTER. Press 2ND [QUIT] to exit the mode screen.

If this doesn't do it, please reply to this post giving an example of a calculation and the answer you're getting from the calculator.

Feb 03, 2011 | Texas Instruments TI-84 Plus Calculator

### HOW DO I USE THESE SYMBOLS ()

Use them to group expressions, to override the precedence of operations. For example, if you put in
1 + 3 * 2 + 2
the calculator will give you 9, which is 1+(3*2)+2, because multiplication takes precedence over addition. If you put in ( 1 + 3 ) * ( 2 + 2) then you'll get 16 because you've overridden the precedence to do the additions first.

Sep 02, 2010 | Texas Instruments TI-30XA Calculator

### 1 / 3.9 x 10 ^ -16

on the TI-30xa...
key 1
key blue division key
key (
key 3.9
key blue multiplication key
hit 2nd
hit 10^X key in yellow
key 16
key +/- grey key at bottom between . and =
key )
Finally, key =

are there any ( ) in your equasion?
if not... you can also solve individually...
Division first:
1/3.9 =
then hit 10^x key
enter 16, and press x/-
then enter.

which is .000000000000000025641056410564105641056410......etc.

Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

May 22, 2009 | Texas Instruments TI-30XA Calculator

### Simplifying fractions on the TI-30XA

Two ways:

1) hit the equal sign

2) hit 2nd and [d/c] (you can do this multiple times to see it as the most reduced improper fraction or as a mixed fraction)

Mar 01, 2009 | Texas Instruments TI-30XA Calculator

### Inputing Scientific Numbers

If you mean using the "EE" key it's straightforward.

To enter scientific numbers, enter the number, then press EE, then the exponent value. The TI-30XA will stay in scientific display until you "clear" or turn it off. It will also switch to scientific notation if you multiply big numbers that exceed the display.

E.g. Input 3, EE, 10, X, 3, EE, 10, =, gives you the answer 9 times 10 to the power 20. Press the "square root" key and you will get back 3 times 10 to the power 10.

You can mix entries too, e.g. 3, EE, 10, X, 2, =, gives you 6 times 10 the power 10....

Nov 29, 2008 | Texas Instruments TI-30XA Calculator

## Open Questions:

#### Related Topics:

122 people viewed this question

Level 3 Expert

Level 2 Expert