APPENDIX II 



153 



TABLE 9 



The numerical example of the approximate integration of the system of equations 

 of the struggle for existence with the aid of the method of Runge-Kutta 



a = 3.15 Ki = 13.0 units of volume b 1 = 0.21827 units per hour h = 10 

 = 0.439 K 2 = 5.8 units of volume b 2 = 0.06069 units per hour hours 



dN 



the final value of N we pass beyond the asymptote K, and becomes negative, 



dt 



we will simply consider it as equal to zero. With the resources of energy main- 

 tained at a fixed level the calculations must apparently be continued according 

 to the directions given in Chapter V. A detailed description of the method of 

 Runge-Kutta is to be found in the book Vorlesungen iiber numerische Rechnen 

 by Runge and Konig ('24). 



