Figure 2

Comparison between the finite element and the reduced basis approximation frameworks: $\delta {\tau }^{\mathcal{N}}$ is the marginal computational time for a single FE field/output approximation, while $\delta {\tau }_N$ is the marginal computational time for a single RB field/output (Online) evaluation, provided the data structures assembled and stored during the Offline stage (courtesy A. Patera, http://augustine.mit.edu).