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A calculator is out of order. The calculator will round up every single number to the nearest integer if the value at the first decimal digit is 6 and above, or else it rounds down the number to be nearest integer. Calculate the absolute and relative error for the solution if we use the calculators to perform the following calculations:

a) $\sqrt{6.8} - \sqrt{6.3}$

b)$\frac{5}{9}+\frac{2}{3}.\frac{3}{5}$

I tried to round up or down the figure individually and my answer for the absolute error in a) is $0.9023$, for relative error is $9.2354 $.

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  • $\begingroup$ Anyone help????????? $\endgroup$ Commented Nov 23, 2015 at 10:55
  • $\begingroup$ i tried to round up or down the figure individually and my answer for the absolute error in a is 0.9023, for relative error is 9.2354 $\endgroup$ Commented Nov 23, 2015 at 13:43

1 Answer 1

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The answer explained by a youtuber I watched it a long time ago

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    $\begingroup$ Link-only answers aren't really all too welcome on Math SX. I'm sure this link is interesting and relevant, so perhaps you should turn it into a comment? Food for thought! $\endgroup$ Commented Nov 23, 2015 at 16:38
  • $\begingroup$ @MickG,absolutely right!! $\endgroup$ Commented Nov 23, 2015 at 16:50
  • $\begingroup$ BUT he only has 1 rep, so he can't really convert it… $\endgroup$ Commented Nov 23, 2015 at 17:54

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