double factorial
For an odd integer, the result of multiplying all the odd integers from 1 to the given…For an odd integer, the result of multiplying all the odd integers from 1 to the given number; or for an even integer, the result of multiplying all the even integers from 2 to the given number; symbolised by a double exclamation mark (!!). For example, 9!! = 1 × 3 × 5 × 7 × 9 = 945.
Значение
значений: 1For an odd integer, the result of multiplying all the odd integers from 1 to the given number; or for an even integer, the result of multiplying all the even integers from 2 to the given number; symbolised by a double exclamation mark (!!). For example, 9!! = 1 × 3 × 5 × 7 × 9 = 945.
Doppelfakultät, doppelte Fakultät
Переводы
языков: 4По значениям 1
Происхождение
From double + factorial.From double + factorial.
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Формы
мн. число: double factorials| Ед. число | double factorial |
|---|---|
| Мн. число | double factorials |
правильный