Factorial
01
階乗, ファクトリアル
the product of all positive whole numbers from 1 to a given number
例
The factorial of 5 is calculated as 5!=5×4×3×2×1=120.
5の階乗は5! = 5×4×3×2×1 = 120と計算されます。
factorial
01
階乗, ファクトリアル
multiplying a whole number by all the smaller whole numbers down to 1
例
The factorial function is denoted by an exclamation mark (! ) and is used in combinatorial mathematics.
階乗関数は感嘆符（！）で表され、組み合わせ数学で使用されます。
