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computer, I have a generated datafile of X Y Z pairs
specifically r, theta, f(r,theta) (where f is unknown but found via finite difference methods).
I'd like to plot a mesh that has two independent axis, one for r and one for theta and then a dependent axis for f(r,theta).
here are a couple lines from the datafile
1 0 21.4417
1 0.314159 -102.989
1 0.628319 -217.197
1 0.942478 -310.002
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