名词
中文翻译：差异运算符
同义词：
['difference operator', 'differential operator']
例句：
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1. The difference operator is used to calculate the difference between two numbers.
差分运算符用于计算两个数字之间的差。
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2. The differential operator is used to find the rate of change of a function.
差分运算符用于找到函数的导数。
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3. The difference operator is also used in programming languages to perform operations on different variables.
差分运算符在编程语言中用于对不同变量执行操作。