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Posted on Aug 28, 2009
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I have a TI-30XS Calculator and cannot figure out why the thing won't work when I try to divide numbers with scientific notation. The calculator appears to be adding exponents when it should be subtracting. Does anybody know about this calculator?

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  • Paul Bade May 11, 2010

    Can you provide a sample calculation with the answer the calculator gives? Does the change sign function work properly on the exponent? (I'm wondering if the center segment is bad on the third digit - that would look like the exponent is always positive, and an 8 entered in this place (not scientific notation) would look like a 0.)

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  • Posted on Aug 29, 2009
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One solution that you might try is to put the scientific numbers in parentheses. For instance open parenthesis, type in the first scientific notation then close parenthesis, next hit the divide key and then open parenthesis and type in the 2nd number in scientific that you are dividing by and then close parenthesis. Hit enter or =. I'm not sure if this will fix your problem, but it is worth a try.

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1. To convert a number to scientific equation, use [2nd][Sci]
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