
A Stochastic System and Its Corresponding Deterministic System 349
12.5 13 13.5 14 14.5 15 15.5
0
50
100
150
200
250
T
1
Frequency
SSA
Explicit Tau−Leaping
Implicit Tau−Leaping
11.5 12 12.5 13 13.5
50
100
150
200
250
T
1
*
Frequency
SSA
Explicit Tau−Leaping
Implicit Tau−Leaping
588 590 592 594 596 598
0
50
100
150
200
250
T
2
Frequency
SSA
Explicit Tau−Leaping
Implicit Tau−Leaping
8.8 9 9.2 9.4 9.6 9.8 10
50
100
150
200
250
T
2
*
Frequency
SSA
Explicit Tau−Leaping
Implicit Tau−Leaping
55 60 65 70 75 80
0
50
100
150
200
250
300
V
I
Frequency
SSA
Explicit Tau−Leaping
Implicit Tau−Leaping
3 4 5 6 7 8 9 10
50
100
150
200
250
E
1
Frequency
SSA
Explicit Tau−Leaping
Implicit Tau−Leaping
0.2 0.3 0.4 0.5 0.6 0.7 0.8 ...