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第173行：
第173行： − 这些方程式具有周期解，但通常对于三角函数而言，虽然很容易处理，却并没有简单的表达式。+ 第278行：
第278行： − 一个不太极端的示例包括：+
→Solutions to the equations 方程求解
The equations have periodic solutions and do not have a simple expression in terms of the usual trigonometric functions, although they are quite tractable.
The equations have periodic solutions and do not have a simple expression in terms of the usual trigonometric functions, although they are quite tractable.
这些方程式具有周期解，然而一般地，对于三角函数而言，虽然很容易处理，但是并没有简单的表达式。
α = 2/3, β = 4/3, γ = 1 = δ. Assume x, y quantify thousands each. Circles represent prey and predator initial conditions from x = y = 0.9 to 1.8, in steps of 0.1. The fixed point is at (1, 1/2).
α = 2/3, β = 4/3, γ = 1 = δ. Assume x, y quantify thousands each. Circles represent prey and predator initial conditions from x = y = 0.9 to 1.8, in steps of 0.1. The fixed point is at (1, 1/2).
一个不太极端的例子是：
{{mvar|α}} = 2/3, {{mvar|β}} = 4/3, {{mvar|γ}} = 1 = {{mvar|δ}}. 假设{{math|''x'', ''y''}}处于“千”级别还不到“万“。圆圈代表从{{mvar|x}} = {{mvar|y}} = 0.9 到 1.8时猎物和捕食者的初始条件，步长为0.1，且固定点在（1，1/2）。
{{mvar|α}} = 2/3, {{mvar|β}} = 4/3, {{mvar|γ}} = 1 = {{mvar|δ}}. 假设{{math|''x'', ''y''}}处于“千”级别还不到“万“。圆圈代表从{{mvar|x}} = {{mvar|y}} = 0.9 到 1.8时猎物和捕食者的初始条件，步长为0.1，且固定点在（1，1/2）。