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正偏差变量怎么标方向
更新时间: 2020-11-12 00:00:00  

正偏差变量在目标约束所代表的边界线上,用箭头标出正、负偏差变量值增大的方向。并且用符号代表,d+表示正偏差变量,表示实际值超过目标值的差值;d-表示负偏差变量,表示实际值未达到目标值的差值。

关键词: 偏差 变量 怎么 方向

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