gaai1 sing4階乘阶乘

Jyutpinggaai1 sing4
Yalegāai sìhng
名詞

Definition

Factorial; the product of an integer and all positive integers below it, denoted by an exclamation mark.

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How it's used

This is a technical term used primarily in mathematics and statistics contexts. While it is the standard translation for factorial, most people in casual conversation will simply refer to the symbol ! as 驚嘆號 or 感嘆號 when describing the operation.

Examples

The factorial of five is five times four times three times two times one.
Do you know how to calculate the factorial of this number?

Common phrases

Grammar color guide

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