Chapter 3 Number Systems and Boolean Algebra 3.1.2 Positional notation The exponential powers of the positions are critical for understanding numbers in other numbering systems. The position to the left of the radix (number base) point, called a decimal point only in the decimal system, is always the units position in any number system. For example, the position to the left of the binary point is always 20 or 1; the position to the left of the octal point is 80 or 1. In any case, any number raised to its zero power is always 1, or the units position 位的指数幂在理解其他计数制中的数时是个关键。基数小数 点,在十进制中称为十进制小数点,其左边的位在任何数制 中都是个位。例如,二进制小数点左边的位是20或1。而八进 制小数点左边的位是80或1。在任何情况下,任何数的零次幂 总是1,或个单位。 计算机专业英语 39Chapter 3 Number Systems and Boolean Algebra 计算机专业英语 3-9 The exponential powers of the positions are critical for understanding numbers in other numbering systems. The position to the left of the radix (number base) point, called a decimal point only in the decimal system, is always the units position in any number system. For example, the position to the left of the binary point is always 20 or 1; the position to the left of the octal point is 80 or 1. In any case, any number raised to its zero power is always 1, or the units position. 3.1.2 Positional Notation 位的指数幂在理解其他计数制中的数时是个关键。基数小数 点，在十进制中称为十进制小数点，其左边的位在任何数制 中都是个位。例如，二进制小数点左边的位是20或1。而八进 制小数点左边的位是80或1。在任何情况下，任何数的零次幂 总是1，或1个单位