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<div class="moz-cite-prefix">On 11/24/2017 12:49 PM, wrote:<br>
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<p>Hey Dr. Pounds, </p>
<p><br>
</p>
<p>I'm trying to do the test, and I'm having trouble figuring
out exactly what you want for problem 3. I'm fine on
Richardson's extrapolation, but is central difference
approximation the same thing as the 3 and 5 point
midpoint formulas?</p>
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<br>
In my notes I called the central difference approximation. In the
text it is equation 4.5. They use is explicitly in example 2 of
section 4.2<br>
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cite="mid:e93d27ae0aad4dd582e99701738b26e4@spiderman.MercerU.local">
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<p> If it is, we only went over up to 5 point midpoint formulas,
which have an error of O(h^4). I'm not even sure that a 7
point formula exists (the book doesn't cover it), so how do I
get to an accuracy of O(h^6)?</p>
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<br>
Look at the table above Example 2 in section 4.2 and see if you can
answer your own question.<br>
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cite="mid:e93d27ae0aad4dd582e99701738b26e4@spiderman.MercerU.local">
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<p>Thanks, </p>
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</p>
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<pre class="moz-signature" cols="72">--
Andrew J. Pounds, Ph.D. (<a class="moz-txt-link-abbreviated" href="mailto:pounds_aj@mercer.edu">pounds_aj@mercer.edu</a>)
Professor of Chemistry and Computer Science
Mercer University, Macon, GA 31207 (478) 301-5627
<a class="moz-txt-link-freetext" href="http://faculty.mercer.edu/pounds_aj">http://faculty.mercer.edu/pounds_aj</a>
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