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Real number
01
实数
any number that can be found on the number line, including both positive and negative numbers, zero, and fractions
例子
Every point on the number line corresponds to a real number.
The number 5 is a real number because it can be located on the number line.
In mathematics, the set of real numbers is often denoted by the symbol R.
Negative numbers, like -3, are also real numbers.
Real numbers can be used to measure continuous quantities, such as distance and time.
