Evaluation and Visualization Module
The user should first input the parameter μ = [μ1, μ2] such that μ in [0.2, 0.8] × [0.5, 2]. The user should also input a numerical parameter that relates to the desired accuracy of the RB output prediction Npr in [1, 23], Ndu in [1, 25]: the error in our prediction decreases as N increases.
The code then displays, for the desired parameter value μ = [μ1, μ2], (i) the contour of the field and (ii) the value of the output/quantity of interest. We also provide a certificate of fidelity that rigorously bounds the error in our RB prediction for the solution field relative to the highly accurate (and hence very expensive) "truth'' Finite Element solution.