Question about Texas Instruments TI-30XA Calculator

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- log (1 x 10^14) / 2.0 my question is how do you punch this in to a TI-30XA calculator. Please help.

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kakima

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1 EE 14 LOG / 2 +<>- =

Posted on Jun 27, 2010

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k24674

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Actually, you need no calculator to compute the value of the expression.
log (a*b^c)= log(a)+ log(b^c)=log(a) +c*log(b)
With a=1, b=10, c=14
log(1x10^4)=log(1)+14*log(10)
But as you well know, log(1)=0, log(10)=1
Your final result is -14/2 which is -7.

Posted on Jun 28, 2010

  • k24674 Jun 30, 2010

    OOPS
    log(1x10^4)=log(1)+14*log(10) should read log(1x10^14)=log(1)+14*log(10)

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Here is a picture of the change signd677d4e.jpg
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