Computation times

00:43.616 total execution time for 5 files from tutorials/plot:

Example	Time	Mem (MB)
Plot contours (plot_contour.py)	00:12.699	0.0
Plot mesh scopings (plot_mesh_scopings.py)	00:10.351	0.0
Plot a mesh (plot_mesh.py)	00:09.783	0.0
Plot with mesh deformation (plot_deformed_mesh.py)	00:09.678	0.0
Plot a graph using matplotlib (plot_a_graph.py)	00:01.105	0.0