delta/d	w/d	symbol
0.05	0.874	red_circle
0.015	1.09	red_circle
0.005	1.83	red_circle
0.0005	2.55	red_circle
0.00005	3.00	red_circle
0.00609	1.75	blue_triangle
0.00472	1.92	blue_triangle
2.98e-3	2.10	blue_triangle
1.90e-3	2.37	blue_triangle