{"resolved":true,"match_type":"uuid","source_type":"original_book","book_id":"38270854-596f-4a26-8183-db8c968c6020","title":"编码 隐匿在计算机软硬件背后的语言","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787121181184","requested_by":"printed_page","book":{"source_type":"original_book","book_id":"38270854-596f-4a26-8183-db8c968c6020","id":"38270854-596f-4a26-8183-db8c968c6020","uuid":"38270854-596f-4a26-8183-db8c968c6020","title":"编码 隐匿在计算机软硬件背后的语言","normalized_title":"编码隐匿在计算机软硬件背后的语言","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787121181184","isbns":["9787121181184","0123456789","6044921875","3039331000","0000000000","0000000000000"],"parsed":true,"ai_readable":true,"document_type":"book","page_count":438,"navigation_url":"https://workshop.closeclaw.top/ai/book/38270854-596f-4a26-8183-db8c968c6020","title_url":"https://workshop.closeclaw.top/ai/title/%E7%BC%96%E7%A0%81%20%E9%9A%90%E5%8C%BF%E5%9C%A8%E8%AE%A1%E7%AE%97%E6%9C%BA%E8%BD%AF%E7%A1%AC%E4%BB%B6%E8%83%8C%E5%90%8E%E7%9A%84%E8%AF%AD%E8%A8%80","fixed_page_url_template":"https://workshop.closeclaw.top/ai/book/38270854-596f-4a26-8183-db8c968c6020/page/{printed_page}","path_api_url_template":"https://workshop.closeclaw.top/api/ai/book/38270854-596f-4a26-8183-db8c968c6020/page/{printed_page}","read_url":"https://workshop.closeclaw.top/api/ai/read/38270854-596f-4a26-8183-db8c968c6020","page_url":"https://workshop.closeclaw.top/api/ai/books/38270854-596f-4a26-8183-db8c968c6020/page","search_url":"https://workshop.closeclaw.top/api/ai/books/38270854-596f-4a26-8183-db8c968c6020/search"},"page":{"printed_page":61,"pdf_page":77,"physical_index":77,"physical_index_base":0,"printed_page_status":"recognized","page_sha256":"8d67d0c2c5b2e92fc15a5e6cf63585d7c11354ad8f0fa35e7ba1871b0d71cf12"},"chapter":"编码隐匿在计算机软硬件背后的语言","content":"例如， $5 _ { \\mathrm { \\scriptsize ~ E I G H T } } + 7 _ { \\mathrm { \\scriptsize ~ E I G H T } } = 1 4 _ { \\mathrm { \\scriptsize ~ E I G H T c } }$ 我们还可以将两个更长的八进制数按照与十进制相同的方法相加：\n\n$$\n\\frac { 1 3 5 } { 1 0 4 3 }\n$$\n\n首先要从最右的一列开始，5加3等于10，结果为0，进位1；1加3加4等于10，结果为0，进位1；1加1加6等于 $1 0 _ { \\circ }$\n\n同样，在八进制中，2乘以2结果依然为 ${ \\pmb 4 } _ { \\circ }$ 但是3乘以3却不等于 ${ \\mathfrak { g } } _ { \\mathfrak { o } }$ 那是多少呢？在这里，3乘以3结果是 $1 1 _ { \\mathrm { ~ \\tiny ~ E I G H T } }$ ，其与 ${ \\bf 9 } _ { \\mathrm { T E N } }$ 所代表的数量相等。下面为八进制乘法的乘法表。\n\n在这里， $4 \\times 6$ 等于 $3 0 _ { \\mathrm { E I G H T } }$ ，而 $3 0 _ { \\tt E I G H T }$ 与 $2 4 _ { \\mathrm { T E N } }$ 等价，也就是与十进制中的 $4 \\times 6$ 相等。\n\n八进制数字系统与十进制数字系统一样，都是有效的。但是让我们更进一步来看，既然已经为卡通人物开发了一套数字系统，就让我们再制订一套适合龙虾的数字系统吧。实际上龙虾根本没有手指，但是在它们前爪的末端都有鳌。适用于龙虾的数字系统是以4为基数的四进制（quaternary）数字系统。\n\n8 十的替代品\n\n61","previous_page":60,"next_page":62}