计算机术语“floatingpoint coding compaction”的中英文意思、释义、翻译及用法-计算机英汉双解词典

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术语	floatingpoint coding compaction
释义	floatingpoint coding compaction 浮点编码精简法 Numerical data compaction that makes use of exponents to specify the scale, range, or magnitude of numbers. The exponent indicates the location of the decimal point in numbers. Thus, each number has two parts, namely the coefficient or fractional part, and the exponent part. The coefficient is to be multiplied by a power of ten indicated by the exponent part. For example, the number 12 190 000 may be expressed in floatingpoint notation as 1 219×104, or 1 219(4), or as 1219 4, in which the 4 indicates the number of 0's to be appended to the 1 219. If the number is rounded to 122×105,it might be written as 122 5, or as 12 6, in which the last digit indicates the number of 0's. Thus only 3 positions are required instead of 8 to represent the number in storage or in a message, which is only 37.5% of the original space and time requirement. 使用浮点的阶来表示数的比例因子、范围或大小的数字数据精简法。阶表示数的十进制小数点的位置,于是每个数都有两部分,即尾数或小数部分和阶数部分。尾数乘以阶数部分所指的10的幂次。例如,数字12 190 000在浮点表示法中可以表示为1 219×104,或 1 219(4),或1 219 4,其中4表示要添加到1 219后面的0的个数。如果该数四舍五入为 122×105,则可写成122 5或12 6,其中最后的数字表示0的数目,于是在存储器中或信息中, 为表示该数字只需要3个位置,而不用8个位置。它只是原来所占空间和时间要求的37.5%。
随便看	mean access time mean accuracy mean conditional information content mean entropy mean entropy (per character) mean failure rate mean free error time mean information content mean information content (per character) mean rate accuracy mean repair time mean time between errors (MTBE) mean time between failure (MTBF) mean time to failure (MTF) mean time to repair (MTTR) mean transinformation mean transinformation content mean transinformation content per character measure measured variable measurement measurement error measure of information mechanical dictionary mechanical interface

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