961
个编辑
更改
跳到导航
跳到搜索
第28行：
第28行： − − where, − ：x is the number of prey (for example, rabbits); − ：y is the number of some predator (for example, foxes); − ：{\displaystyle {\tfrac {dy}{dt}}}{\tfrac {dy}{dt}} and {\displaystyle {\tfrac {dx}{dt}}}{\tfrac {dx}{dt}} represent the instantaneous growth rates of the two populations; − :t represents time; − :, β, γ, δ are positive real parameters describing the interaction of the two species.
无编辑摘要
:{{mvar|t}} represents time;
:{{mvar|t}} represents time;
:{{math|''α'', ''β'', ''γ'', ''δ''}} are positive real [[parameter]]s describing the interaction of the two [[species]].
:{{math|''α'', ''β'', ''γ'', ''δ''}} are positive real [[parameter]]s describing the interaction of the two [[species]].
其中：
其中：