(n-1)!的意思、翻譯和例句

是什麼意思

「(n-1)!」是數學中的一個符號,表示「n-1的階乘」。階乘是指從1到該數的所有正整數的乘積,通常用符號「!」表示。階乘的定義是: - 0! = 1(約定為1) - n! = n × (n-1)!,對於n > 0 例如,3! = 3 × 2 × 1 = 6,而(3-1)! = 2! = 2 × 1 = 2。階乘在組合數學、概率論和數學分析中都有廣泛的應用。

依照不同程度的英文解釋

  1. A way to multiply a series of numbers.
  2. The product of all whole numbers up to a certain number.
  3. A mathematical operation involving a number and all smaller numbers.
  4. The result of multiplying a number by all the numbers below it.
  5. A calculation that involves multiplying a number by every whole number less than it.
  6. A function that gives the product of all positive integers up to a specified integer.
  7. A recursive function used in permutations and combinations.
  8. A factorial operation that is foundational in combinatorial mathematics.
  9. A mathematical notation representing the product of all positive integers less than or equal to a specified integer.
  10. A notation used in mathematics to denote the product of all positive integers up to a certain integer.

相關英文單字或片語的差別與用法

1:Factorial

用法:

在數學中,階乘是一種常見的運算,特別是在組合數學和概率論中。它用於計算排列和組合的數量,並且在許多數學公式中出現。階乘的計算可以通過遞歸的方法進行,並且在編程中也常用來解決各種問題。階乘的計算隨著數字的增大而迅速增長,因此對於較大的數字,計算可能會變得複雜。

例句及翻譯:

例句 1:

5的階乘等於120,因為5! = 5 × 4 × 3 × 2 × 1。

The factorial of 5 equals 120, because 5! = 5 × 4 × 3 × 2 × 1.

例句 2:

在計算排列時,我們常常需要使用階乘來確定可能的組合數。

When calculating permutations, we often need to use factorials to determine the number of possible combinations.

例句 3:

在統計學中,階乘被用來計算各種機率問題。

In statistics, factorials are used to calculate various probability problems.