On 6/7/23 10:57, Mathieu wrote:
"Like Bruno already said in other words, you are starting at the wrong end of
the question. In a first step, define mathematically *what* it is you want to
do (and justify why this is the right choice). Then, in a second step, one can
think about *how* to implement this."
[...]
I want to circumvent this by extrapolating the function somehow (bilinear, ...).
You'll need to say what this "somehow" is supposed to be. I can think of a
half-dozen ways of extrapolating functions, but like Bruno already outlined,
which one is right depends on what you want to do.
In other words, come up with a *mathematical definition* of the operation you
want to do, and we can help with how that can be implemented.
Best
W.
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Wolfgang Bangerth email: bange...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/
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