I have a problem which is confusing me a bit. I have a rather long
calculation, the results of which I am comparing to a finite element
solution. Now, in defining the problem, I have a set of physical
For the sake of discussion, they are a=10, t=0.05, L=16.1886,
Leaving these as is, my analytic solution gives two solutions, 395325
and 128095. There is also a "wave number" (an integer) associated with
these. The second of these solutions is correct within 3%, and
predicts the same wave number as the FE solution.
However, when enter the dimensions as follows:
The solution now produces two solutions which are almost exactly the
same, and have a value about 310551.7, which is quite a long way from
the correct solution.
So, my question is, should I trust the machine precision solution, on
the arbitrary precision solution?
(rpinnaX@XcivilX.uwa.edu.au Remove the X for email)
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Re: Numeric Accuracy