Hi,(adsbygoogle = window.adsbygoogle || []).push({});

This is a v. simple Q, but I have a mental block today (!).

The question is: What size must z be in the function f(z) to output the value of the integral I with an error of 0.1? What about an error of 0.01? Or 0.001?

I calculate I to be 0.6666666... recurring.

Now

f(3) = 0.8148148147

f(4) = 0.7500000000

f(5) = 0.72000000

f(7) = 0.693875508

f(8) = 0.687500000

f(9) = 0.6831275719

f(10) = 0.6800000000

etc.

By a 0.1 error, does it mean that the value of f(x) must fall within I ± 0.1? ie no more than (0.66666.... + 0.1 =) 0.76666666... and no less than (0.66666... - 0.1 =) 0.5666666 ? ie. z=4 satisfies the requirement (?)

Cheers.

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# Homework Help: Simple, simple question concerning errors needing quick answer

Can you offer guidance or do you also need help?

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