# From Table 2 of Johansen & Colella, 1998, JCP 147, 60-85
# N    e_max   	  e_p_avg    e_f_avg
40     5.85e-5	  9.33e-6    1.38e-6
80     7.36e-6	  1.33e-6    3.97e-7
160    1.17e-6	  1.76e-7    1.05e-7
320    1.68e-7	  2.27e-8    2.70e-8
640    2.27e-8	  2.86e-9    6.84e-9