N

N_app

h

h_app

L

L_app

ρ_1,opt

ρ_2,opt

10

21

0.2222

0.5428

1

5.3770

25

5

100

199

0.0202

0.0493

1

4.8845

25

5

1000

1982

0.0020

0.0049

1

4.8401

25

5