INFLOWS:
ΔX ¼ (RÀ1) * X_Numeric
Y_Numeric(t) ¼ Y_Numeric(t À dt) + (ΔY) * dt
INIT Y_Numeric ¼ Xo\Yo
INFLOWS:
ΔY ¼ R * Y_Numeric
R ¼ 2
X_Analytic ¼ Xo\Yo * R^time
Y_Analytic ¼ Xo\Yo * EXP(R * time)
References
1. Hannon B, Ruth M (2001) Dynamic modeling, 2nd edn. Springer, New York
2. Hannon B, Ruth M (2009) Dynamic modeling of diseases and pests. Springer, New York
3. Ruth M, Hannon B (2012) Modeling dynamic economic systems, 2nd edn. Springer, New York
4. Gertner G, Cao X, Zhu H (1991) A quality assessment of a Weibull based growth projection
system. For Ecol Manage 71(3):235–250
5. Gertner G, Guan B (1991) Using an error budget to evaluate the importance of component
models within a large-scale simulation model. In: Proceedings of conference on mathematical
modeling of forest ecosystems. J.D. Verlag, Frankfurt am Main, pp 62–74
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2 Exploring Dynamic Biological Systems