翘曲座标值，仍以计算公式表示之。

The values of warping coordinates is still expressed in the calculating formulas.

youdao

物理量之间的关系通常用公式表示。

Relations between physical quantities are usually given in the form of equations.

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通常，模型可以用分类规则、判定树或数学公式表示。

Generally, model can be expressed by classification rule, decision tree and mathematical formula.

youdao

So the running time of the problem where the input is T of size N as expressed here formulaically, T of N, the running time of an algorithm, given an input of size N. You know what?

因此一个输入为N的问题的运行时间,在这儿的公式表示为，如果输入为N，那么此算法的运行时间,是多少呢？

哈佛公开课 - 计算机科学课程节选