# 注意事项

{% hint style="warning" %}
由于不同问题对应的参考文献不同, 其对应的数学规划表达式也可能不同 (虽然它们是等价的).

所以在查看具体内容之前请先明确该板块所使用的表达式 (在每个板块最前面和每段代码最前面都有标注)
{% endhint %}

### **目标函数** $$min$$ **和** $$max$$ **的转化**

$$min\ c^{T}x \iff max\ - c^{T}x$$

***

### **约束条件大于等于和小于等于的转化**

$$Ax \leq b \iff -Ax \geq -b$$

***

### **约束条件等式和不等式的转化**

$$Ax + y = b,\ y \in \mathbb{R\_{+}}^{m \times 1} \iff Ax \leq b$$

* 从右到左的转化思想是: 给每一个约束添加一个辅助变量使得不等式变成等式


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