除數與被除數
Addition, subtraction, multiplication and division are the four basic arithmetic operati*** done in the set of real numbers. Division is the inverse operation of multiplication. For example, and therefore, . Unlike the other three operati***, division is not closed in the set of integers. For example, is not an integer. In other words, sometimes a remainder is left when a number is divided by another. To make the operation of division complete, the number system is extended from the set of integers to the set of rational numbers.
在整數集合中，除法在除法中起著重要作用。它說對於每個整數a，b（≠0），存在唯一的整數q和r，使得a=bq+r，其中0≤q≤| b |。例如，取a=5和b=2，q和r的唯一值分別為2和1，即5=2*2+1。這表明，當5除以整數集中的2時，答案是2，剩下的是1的餘數。
But in the set of real numbers the division there is no remainder. Let a, b (≠0) be two real numbers, then if and only if
什麼是除數？
C***ider the number b dividing the number a, i.e. . The number a is divided by the number b. Since, number b is the number by which another number is divided, it is called the divisor – the doer of the division. For example c***ider the case of dividing 5 by 2. Then, the divisor is 2. A very important thing to note about the divisor is that it is non-zero. It is because division by 0 is not-defined.
什麼是紅利？
考慮前面例子中的例子。在這裡，a是被b除的數-除數。將要被除的數a叫做被除數。在5除以2的例子中，5是股息。
因此，在除法算法中，a是被除數，b是除數。
| 除數和被除數的區別是什麼？•股息是被除以的數字。被除數的除數叫做除數。•除數可以是任何實數，而除數應該是非零。 |
