factorial

柯林斯詞典

factorial /f?k?t??r??l/

• 1. N the product of all the positive integers from one up to and including a given integer. Factorial zero is assigned the value of one: factorial four is 1?×?2?×?3?×?4. Symbol: n!, where n is the given integer 階乘

• 2. ADJ of or involving factorials or factors 階乘的

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