□
G
—
c
=
+ i
M = 10
M = 50
M = 100
M = 200
M = 500
M = 1000
M = 2000
M = 5000
M = 10000
S = 2
S = 5
S = 10
S = 50
[-2.0, 2.0] × [-2.0, 2.0]