将十进制转换为八进制
数制是表示数字的方式之一。每个数字系统都有自己的基数或基数。例如,二进制、八进制、十进制和十六进制数字系统是一些数字系统,也用于微处理器编程。
- 二进制数 - 以 2 为底
- 八进制数 - 以 8 为基数
- 十进制数 - 以 10 为底
- 十六进制数 - 以 16 为基数
这些数字很容易从一个系统转换到另一个系统。可以将十进制转换为二进制,十进制转换为十六进制,十进制转换为八进制,反之亦然。在这里,让我们学习如何将十进制转换为二进制数字系统以及转换步骤和示例。
十进制到八进制转换
在学习如何在数制中将十进制转换为二进制之前,我们先来了解什么是十进制数制,什么是八进制数制。
十进制数系统
以 10 为基数的数字系统称为十进制数系统。十进制数由以下数字组成:0、1、2、3、4、5、6、7、8、9。
八进制数系统
八进制数字系统是一个以 3 为基数的数字系统,它使用从 0 到 7 的 8 位数字(即 0、1、2、3、4、5、6、7)来表示一个数字。例如:01、17 等。
所有的十进制数都有对应的八进制数。
十进制转八进制公式
将十进制数转换为八进制数,可以使用公式、除法等不同的方法。在这里,使用余数公式。使用十进制到八进制公式将十进制数转换为八进制数的步骤如下,
第 1 步:将给定的十进制数除以 8,求余数 (Ri)。
步骤 2:现在将上述步骤中获得的商 (Qi) 除以 8,求余数。
步骤 3:重复上述步骤 1 和 2,直到获得 0 作为商。
第 4 步:按以下方式记下余数:先写最后一个余数,然后按相反顺序写下余数 (Rn, R(n – 1) .... R1)。因此将获得给定十进制数的二进制转换。
让我们通过一些示例学习如何使用十进制到八进制公式将十进制数转换为八进制数。
示例问题
问题 1:使用十进制到八进制的公式,将十进制转换为八进制数。
解决方案:
Using decimal to Octal formula,
Step 1: Divide the number 10 by 8, find the remainder:
10 ÷ 8 gives Q1 = 1, R1 = 2
Step 2: Divide Q1 by 2, find the remainder:
1 ÷ 8 gives Q2 = 0, R2 = 1
Step 3: Write down the remainder in the following manner: the last remainder is written first, followed by the rest in the reverse order (Rn, R(n – 1) …. R1), this is the Octal conversion of the given decimal number: 12
Answer: Hence, 10 as Octal is 12.
问题 2:使用十进制到八进制的公式,将十进制的 13 转换为八进制数。
解决方案:
Using decimal to Octal formula,
Step 1: Divide the number 13 by 8, find the remainder.
13 ÷ 8 gives Q1 = 1, R1 = 5
Step 2: Divide Q1 by 2, find the remainder.
1 ÷ 8 gives Q2 = 0, R2 = 1
Step 3: Write down the remainder in the following manner: the last remainder is written first, followed by the rest in the reverse order (Rn, R(n – 1) …. R1), this is the Octal conversion of the given decimal number: 15
Answer: Hence, 13 as Octal is 15
问题 3:使用十进制到八进制的公式,将 4 个十进制转换为八进制数。
解决方案:
Using decimal to Octal formula,
Step 1: Divide the number 4 by 8, find the remainder.
4 ÷ 8 gives Q1 = 0, R1 = 4
Step 2: Write down the remainder in the following manner: the last remainder is written first, followed by the rest in the reverse order (Rn, R(n – 1) …. R1), this is the Octal conversion of the given decimal number: 4
Answer: Hence, 4 as Octal is 4.
问题 4:使用十进制到八进制的公式,将 5 个十进制转换为八进制数。
解决方案:
Using decimal to Octal formula,
Step 1: Divide the number by 5, find the remainder.
5 ÷ 8 gives Q1 = 0, R1 = 5
Step 2: Write down the remainder in the following manner: the last remainder is written first, followed by the rest in the reverse order (Rn, R(n – 1) …. R1), this is the Octal conversion of the given decimal number: 5
Answer: Hence, 5 as Octal is 5
问题 5:使用十进制到八进制的公式,将十进制的 16 转换为八进制数。
解决方案:
Using decimal to Octal formula,
Step 1: Divide the number by 16, find the remainder.
16 ÷ 8 gives Q1 = 2, R1 = 0
Step 2: Divide Q1 by 2, find the remainder.
2 ÷ 8 gives Q2 = 0, R2 = 2
Step 3: Write down the remainder in the following manner: the last remainder is written first, followed by the rest in the reverse order (Rn, R(n – 1) …. R1), this is the Octal conversion of the given decimal number: 20
Answer: Hence, 16 as Octal is 20
问题 6:使用十进制到八进制的公式,将十进制的 127 转换为八进制数。
解决方案:
Using decimal to Octal formula,
Step 1: Divide the number by 127, find the remainder.
127 ÷ 8 gives Q1 = 15, R1 = 7
Step 2: Divide Q1 by 2, find the remainder.
15 ÷ 8 gives Q2 = 1, R2 = 7
Step 3: Divide Q2 by 2, find the remainder.
1 ÷ 8 gives Q3 = 0, R3 = 1
Step 4: Write down the remainder in the following manner: the last remainder is written first, followed by the rest in the reverse order (Rn, R(n – 1) …. R1), this is the Octal conversion of the given decimal number: 177
Answer: Hence, 127 as Octal is 177.
问题 7:使用十进制转八进制公式,将十进制 88 转换为八进制数。
解决方案
Using decimal to Octal formula,
Step 1: Divide the number by 88, find the remainder.
88 ÷ 8 gives Q1 = 11, R1 = 0
Step 2: Divide Q1 by 2, find the remainder.
11 ÷ 8 gives Q2 = 1, R2 = 3
Step 3: Divide Q2 by 2, find the remainder.
1 ÷ 8 gives Q3 = 0, R3 = 1
Step 4: Write down the remainder in the following manner: the last remainder is written first, followed by the rest in the reverse order (Rn, R(n – 1) …. R1), this is the Octal conversion of the given decimal number: 130
Answer: Hence, 88 as Octal is 130