目标函数f(x)就是用设计变量来表示的所追求的目标形式,所以目标函数就是设计变量的函数,是一个标量。从工程意义讲,目标函数是系统的性能标准,比如,一个结构的最轻重量、最低造价、最合理形式;一件产品的最短生产时间、最小能量消耗;一个实验的最佳配方等等,建立目标函数的过程就是寻找设计变量与目标的关系的过程,目标函数和设计变量的关系可用曲线、曲面或超曲面表示。
目标函式执行期间收集的总样本数。
The total number of samples that are collected during the execution of the target function.
目标函式指令直接执行期间收集的样本数。
The number of samples that are collected during the direct execution of the instructions of the target function.
专有样本并不包括目标函式呼叫之函式的执行期间收集的样本。
Exclusive samples do not include samples that are collected during the execution of functions that are called by the target function.
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