过滤条件可以指定为列名，其后跟等式、不等式或布尔运算符，然后是过滤值。
Filter criteria are specified as the column name, followed by an equality, inequality, or Boolean operator, followed by the filter value.
这很容易做到，只要想想什么情况下你会变得不耐烦，就可以开始行动了——这就像做数学运算一样，在你列出等式得出最后答案之前，你必须知道你的参数。
It's like solving a mathematical word problem. Before you can come up with an equation and an answer you must know your data.
方程与算数的等式不同在于它含有可以参加运算的未知量。
Equation is different from arithmetic identity in that it contains unknown quantity which can join operations.
并且采用了最小二乘支持向量机，用等式约束取代了支持向量机中的不等式约束，降低了运算量，提高了学习效率。
The LS-SVM classifier is adopted, which replaces inequality constraints in SVM by equality constraints. So the computation consumption is reduced and the learning performance is improved.
应用真值矩阵分析逻辑电路具有直观、简便的优点，并可由其运算结果导出一些对称三值逻辑运算的恒等式。
Application of truth matrix to analyze a logic circuit is intuitive and simple, and the results may lead to the derivation of some identical relations of certain symmetrical ternary logic system.
应用真值矩阵分析逻辑电路具有直观、简便的优点，并可由其运算结果导出一些对称三值逻辑运算的恒等式。
Application of truth matrix to analyze a logic circuit is intuitive and simple, and the results may lead to the derivation of some identical relations of certain symmetrical ternary logic system.
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