Question about Texas Instruments TI-89 Calculator

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On the screen appears <<>> instead of numbers that i type

I don´t know why, but it is very unconfortable, because on screen i can not see which number I type and the result either..

for example, i press the number "2", and then "enter" in the main screen appears <<..>>

the same thing for opperations like amounts, multiplication, etc..

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  • 58 Answers

Try resetting it... Will probably rid you of your problem.

2nd>Mem(+ sign)>reset> right 2c(ALL at top should be highlighted)>yes

You will need to reload all your programs, and while your at it you should probably update the OS from the TI site...

Good Luck
-Saik0Shinigami

Posted on Feb 08, 2008

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