Question about Texas Instruments TI-30XA Calculator

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Does not display numbers WHEN looking at the display area NORMAL position

Bought in 11/02/07. I can see the numbers on the display area when looking directly at it; however, I can see only see the numbers when the calculator is moved foward, and I look at the numbers from about display area from about 45 deg. behind the calculator. I rarely used it. Why can't it display numbers at normal position? Why move about a foot foward and my eyes at 45d deg. then I can see the numbers? Do I need to get new battery?

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I would say new batteries or a new calculator.

Posted on Mar 04, 2008

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But if you are calculating some meaningful expression, the calculator displays the result according to the display mode you selected: Normal, Scientific, or Engineering). However, even in normal mode, if a number is too small, or too large, the calculator displays it in scientific format.

Scientific format
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Let us count the number of possible characters in a display
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Try playing with the number 987654321123456. All you will see is 9876543211E12. The 23456 sequence disappears, and all that "precision" is lost. Why, may I ask, should you worry that your calculator is not displaying more that 13 characters on the left.

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