Newton began to search for a mathematical expression of his idea.
牛顿开始探索用数学来表达他的观念。
By equation we mean a mathematical expression in which the two sides balance.
所谓方程式，是指两边相等的数学式。
The answer was, find a mathematical expression depending on the number of inputs.
很不错，答案是，找到一个通过输入数字,计算出来的数字表达式。
A ratio is a simple mathematical expression of the relationship of one item to another.
比率为一项目与另一项目之间关系的简单算术列式。
The most important issue in text categorization is mathematical expression model of text data.
文本开类的沉要题纲非文本数据的数教外示模型。
The mathematical expression of this model is a second order non linear ordinary difference equation.
该模型的数学形式是一个非线性二阶常微分方程，利用有限差分方法进行求解。
An expression is a group of symbols that make a mathematical equation.
表达式是一组构成数学等式的符号。
An expression is a group of symbols that make a mathematical equation.
表达式是一组构成数学等式的符号。
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