Question about Texas Instruments TI-30XA Calculator

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When I turn it on, a 7 appears on the screen under DEG. Most of the keys don't work, and when they do we often get an error message. I just replaced the batteries, but that did not help. Any ideas? Thank you!

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Try hard reset

Posted on Oct 12, 2010

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Hope this help.
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1. While pressing the utility/counter bot
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1 Answer

I have DEG on the calculator screen and get figure out how to turn it off??


Press the DRG key to cycle through the three angle modes. Be aware that whatever mode you select, the corresponding indicator will appear on the screen.

The angle mode should not affect the exponential and logarithmic functions. If you still get errors, please post an example or two, including the exact keystroke sequences.

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To run the check disk utility you will need a repair disc ora operating system disc. Put the disc in the cd drive and boot fromit. You want to get to the Dos Command Prompt (Black screen with whiteletters) and type the following command: chkdsk /r
Check disk will run well over an hour or two and you will notice thepercentages going from high to low, this is normal. Let it run tocompletion. Then reboot machine.

If check disk fails to solve your problem you might have to reinstall windows.Try doing a Repair Install that way you don't loose your data, documents,music, pictures, videos or programs.

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Igxprd32 error


To run the check disk utility you will need a repair disc ora operating system disc. Put the disc in the cd drive and boot fromit. You want to get to the Dos Command Prompt (Black screen with whiteletters) and type the following command: chkdsk /r
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In Vista and Windows 7 you want to get to the recoveryconsole and look down at the bottom of the window for the Dos Command.

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How do i calculate cos 30°24'


You must first set angle unit to degree.
Press the [MODE] key a certain number of times until you get to a screen that displays Deg Rad Grad. Press number key 1 to select degree.
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To calculate cos(30 deg 24')
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If you get an error message you will have to enter the seconds even if the value is 0
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1 Answer

Time problems


Sorry to say it but the DMS key is to convert between Degrees, minutes, seconds and decimal degrees (angle units). This cleared here is how to use the DMS key on this calculator.

Label of key [deg symbol ' "]. It is between [(-)] and [hyp]

To enter a value in decimal degrees
12.58 [deg ' "] [=] Screen displays 12.58 deg on top line and 12 deg 34' 48" on bottom line.
Pressing the [deg ' "] key while this value is displayed will show 12.58

To enter a DMS value:

Press the [deg ' "] key after each number even if one of the numbers D,M,S is nill (0).
Exemple Enter 25 deg 0 ' 48"
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Screen displays 25 deg 0' 48" on bottom line
Pressing the [deg ' "] key converts this result to decimal degrees 25.013

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