Figure 2From: A technique for non-intrusive greedy piecewise-rational model reduction of frequency response problems over wide frequency bandsResults for the structural analysis example with (geometric) central splitting. In the top plot, we show the sampled frequencies considered at each iteration. We denote partition boundaries by dotted vertical lines. In the middle plot, the surrogate output magnitude \(\vert \widetilde{y}_{32}(z) \vert \). In the bottom plot, the relative approximation errorBack to article page