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(sec:Emulators_extras)=
# Extra info on emulators

## Building the emulator basis

:::{figure} ../assets/emulator_basic_construction.png
:height: 480px
:name: fig-emulator_basic_construction 
:::


:::{figure} ../assets/Proper_Orthogonal_Decomposition.png
:height: 480px
:name: fig-Proper_Orthogonal_Decomposition
:::

:::{figure} ../assets/Greedy_algorithm_in_action.png
:height: 480px
:name: fig-Greedy_algorithm_in_action
:::


:::{figure} ../assets/POD_vs_greedy_algorithm.png
:height: 480px
:name: fig-POD_vs_greedy_algorithm
:::



## Parametric matrix models

:::{figure} ../assets/Parametric_Matrix_Models.png
:height: 480px
:name: fig-Parametric_Matrix_Models
:::