{"id":323,"date":"2023-02-22T13:40:58","date_gmt":"2023-02-22T13:40:58","guid":{"rendered":"https:\/\/yunshangtulv.com.cn\/?p=323"},"modified":"2023-02-22T13:41:06","modified_gmt":"2023-02-22T13:41:06","slug":"r_%e7%ae%80%e5%8d%95%e8%bf%90%e7%ae%97%e4%b8%8e%e9%80%bb%e8%be%91","status":"publish","type":"post","link":"https:\/\/yunshangtulv.com.cn\/?p=323","title":{"rendered":"R_\u7b80\u5355\u8fd0\u7b97\u4e0e\u903b\u8f91"},"content":{"rendered":"

\u6570\u5b66\u8fd0\u7b97\u7b26<\/h2>\n\n\n\n\n\n
\u8fd0\u7b97\u987a\u5e8f<\/td>\n1<\/span><\/td>\n\u00a02<\/span><\/td>\n\u00a03<\/span><\/td>\n\u00a04<\/span><\/td>\n\u00a05<\/span><\/td>\n\u00a06<\/span><\/td>\n\u00a07<\/span><\/td>\n\u00a08<\/span><\/td>\n<\/tr>\n
\u7b26\u53f7<\/td>\n()<\/td>\n^<\/td>\n%%<\/td>\n%\/%<\/td>\n*<\/td>\n\/<\/td>\n+<\/span><\/td>\n-<\/span><\/td>\n<\/tr>\n
\u542b\u4e49<\/td>\n\u62ec\u53f7<\/td>\n\u4e58\u65b9\u8fd0\u7b97<\/td>\n\u6574\u9664\u6c42\u4f59<\/td>\n\u6574\u9664<\/td>\n\u4e58\u6cd5<\/td>\n\u9664\u6cd5<\/td>\n\u52a0\u6cd5<\/td>\n\u51cf\u6cd5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u6570\u5b66\u51fd\u6570<\/h2>\n\n\n\n\n\n\n\n
\u51fd\u6570<\/span><\/th>\n\u8bf4\u660e<\/span><\/th>\n<\/tr>\n
sqrt(n)<\/span><\/td>\nn\u7684\u5e73\u65b9\u6839<\/span><\/td>\n<\/tr>\n
exp(n)<\/span><\/td>\n\u81ea\u7136\u5e38\u6570e\u7684n\u6b21\u65b9\uff0c<\/span><\/td>\n<\/tr>\n
log(m,n)<\/span><\/td>\nm\u7684\u5bf9\u6570\u51fd\u6570\uff0c\u8fd4\u56den\u7684\u51e0\u6b21\u65b9\u7b49\u4e8em<\/span><\/td>\n<\/tr>\n
log10(m)<\/span><\/td>\n\u76f8\u5f53\u4e8elog(m,10)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u53c2\u6570\u6a21\u578b<\/strong><\/span><\/td>\n\n

\u8bf4\u660e<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n<\/thead>\n

round (n)<\/td>\n\u5bf9 n \u56db\u820d\u4e94\u5165\u53d6\u6574<\/td>\n<\/tr>\n
round (n, m)<\/td>\n\u5bf9 n \u4fdd\u7559 m \u4f4d\u5c0f\u6570\u56db\u820d\u4e94\u5165<\/td>\n<\/tr>\n
ceiling (n)<\/td>\n\u5bf9 n \u5411\u4e0a\u53d6\u6574<\/td>\n<\/tr>\n
floor (n)<\/td>\n\u5bf9 n \u5411\u4e0b\u53d6\u6574<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u5173\u7cfb-\u903b\u8f91\u8fd0\u7b97\u7b26<\/span><\/h2>\n\n\n\n\n\n\n\n\n\n
\u8fd0\u7b97\u7b26<\/strong><\/span><\/th>\n\u8bf4\u660e<\/strong><\/span><\/th>\n<\/tr>\n
><\/td>\n\u5224\u65ad\u7b2c\u4e00\u4e2a\u5411\u91cf\u7684\u6bcf\u4e2a\u5143\u7d20\u662f\u5426\u5927\u4e8e\u7b2c\u4e8c\u4e2a\u5411\u91cf\u7684\u76f8\u5bf9\u5e94\u5143\u7d20\u3002<\/td>\n<\/tr>\n
<<\/td>\n\u5224\u65ad\u7b2c\u4e00\u4e2a\u5411\u91cf\u7684\u6bcf\u4e2a\u5143\u7d20\u662f\u5426\u5c0f\u4e8e\u7b2c\u4e8c\u4e2a\u5411\u91cf\u7684\u76f8\u5bf9\u5e94\u5143\u7d20\u3002<\/td>\n<\/tr>\n
==<\/td>\n\u5224\u65ad\u7b2c\u4e00\u4e2a\u5411\u91cf\u7684\u6bcf\u4e2a\u5143\u7d20\u662f\u5426\u7b49\u4e8e\u7b2c\u4e8c\u4e2a\u5411\u91cf\u7684\u76f8\u5bf9\u5e94\u5143\u7d20\u3002<\/td>\n<\/tr>\n
!=<\/td>\n\u5224\u65ad\u7b2c\u4e00\u4e2a\u5411\u91cf\u7684\u6bcf\u4e2a\u5143\u7d20\u662f\u5426\u4e0d\u7b49\u4e8e\u7b2c\u4e8c\u4e2a\u5411\u91cf\u7684\u76f8\u5bf9\u5e94\u5143\u7d20\u3002<\/td>\n<\/tr>\n
>=<\/td>\n\u5224\u65ad\u7b2c\u4e00\u4e2a\u5411\u91cf\u7684\u6bcf\u4e2a\u5143\u7d20\u662f\u5426\u5927\u4e8e\u7b49\u4e8e\u7b2c\u4e8c\u4e2a\u5411\u91cf\u7684\u76f8\u5bf9\u5e94\u5143\u7d20\u3002<\/td>\n<\/tr>\n
<=<\/td>\n\u5224\u65ad\u7b2c\u4e00\u4e2a\u5411\u91cf\u7684\u6bcf\u4e2a\u5143\u7d20\u662f\u5426\u5c0f\u4e8e\u7b49\u4e8e\u7b2c\u4e8c\u4e2a\u5411\u91cf\u7684\u76f8\u5bf9\u5e94\u5143\u7d20\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
<\/th>\n<\/th>\n<\/tr>\n
&<\/td>\n\u5143\u7d20\u903b\u8f91\u4e0e\uff1a\u5c06\u7b2c\u4e00\u4e2a\u5411\u91cf\u7684\u6bcf\u4e2a\u5143\u7d20\u4e0e\u7b2c\u4e8c\u4e2a\u5411\u91cf\u7684\u76f8\u5bf9\u5e94\u5143\u7d20\u8fdb\u884c\u7ec4\u5408\uff0c\u5982\u679c\u4e24\u4e2a\u5143\u7d20\u90fd\u4e3a TRUE\uff0c\u5219\u7ed3\u679c\u4e3a TRUE\uff0c\u5426\u5219\u4e3a FALSE\u3002<\/td>\n<\/tr>\n
\uff5c<\/td>\n\u5143\u7d20\u903b\u8f91\u6216\uff1a\u5c06\u7b2c\u4e00\u4e2a\u5411\u91cf\u7684\u6bcf\u4e2a\u5143\u7d20\u4e0e\u7b2c\u4e8c\u4e2a\u5411\u91cf\u7684\u76f8\u5bf9\u5e94\u5143\u7d20\u8fdb\u884c\u7ec4\u5408\uff0c\u5982\u679c\u4e24\u4e2a\u5143\u7d20\u4e2d\u6709\u4e00\u4e2a\u4e3a TRUE\uff0c\u5219\u7ed3\u679c\u4e3a TRUE\uff0c\u5982\u679c\u90fd\u4e3a FALSE\uff0c\u5219\u8fd4\u56de FALSE\u3002<\/td>\n<\/tr>\n
!<\/td>\n\u903b\u8f91\u975e\uff1a\u8fd4\u56de\u5411\u91cf\u6bcf\u4e2a\u5143\u7d20\u76f8\u53cd\u7684\u903b\u8f91\u503c\uff0c\u5982\u679c\u5143\u7d20\u4e3a TRUE \u5219\u8fd4\u56de FALSE\uff0c\u5982\u679c\u5143\u7d20\u4e3a FALSE \u5219\u8fd4\u56de TRUE\u3002<\/td>\n<\/tr>\n
&&<\/td>\n\u903b\u8f91\u4e0e\uff1a\u53ea\u5bf9\u4e24\u4e2a\u5411\u91cf\u5bf9\u7b2c\u4e00\u4e2a\u5143\u7d20\u8fdb\u884c\u5224\u65ad\uff0c\u5982\u679c\u4e24\u4e2a\u5143\u7d20\u90fd\u4e3a TRUE\uff0c\u5219\u7ed3\u679c\u4e3a TRUE\uff0c\u5426\u5219\u4e3a FALSE\u3002<\/td>\n<\/tr>\n
||<\/td>\n\u903b\u8f91\u6216\uff1a\u53ea\u5bf9\u4e24\u4e2a\u5411\u91cf\u5bf9\u7b2c\u4e00\u4e2a\u5143\u7d20\u8fdb\u884c\u5224\u65ad\uff0c\u5982\u679c\u4e24\u4e2a\u5143\u7d20\u4e2d\u6709\u4e00\u4e2a\u4e3a TRUE\uff0c\u5219\u7ed3\u679c\u4e3a TRUE\uff0c\u5982\u679c\u90fd\u4e3a FALSE\uff0c\u5219\u8fd4\u56de FALSE\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n
<\/th>\n<\/th>\n<\/tr>\n
:<\/td>\n\u5192\u53f7\u8fd0\u7b97\u7b26\uff0c\u7528\u4e8e\u521b\u5efa\u4e00\u7cfb\u5217\u6570\u5b57\u7684\u5411\u91cf\u3002<\/td>\n<\/tr>\n
%in%<\/td>\n\u7528\u4e8e\u5224\u65ad\u5143\u7d20\u662f\u5426\u5728\u5411\u91cf\u91cc\uff0c\u8fd4\u56de\u5e03\u5c14\u503c\uff0c\u6709\u7684\u8bdd\u8fd4\u56de TRUE\uff0c\u6ca1\u6709\u8fd4\u56de FALSE\u3002<\/td>\n<\/tr>\n
%*%<\/td>\n\u7528\u4e8e\u77e9\u9635\u4e0e\u5b83\u8f6c\u7f6e\u7684\u77e9\u9635\u76f8\u4e58\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

\u6570\u5b66\u8fd0\u7b97\u7b26 \u8fd0\u7b97\u987a\u5e8f 1 \u00a02 \u00a03 \u00a04 \u00a05 \u00a06 \u00a07 \u00a08 \u7b26\u53f7 () ^ %% %\/% * \/ + […]<\/p>\n","protected":false},"author":111,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-323","post","type-post","status-publish","format-standard","hentry","category-r"],"_links":{"self":[{"href":"https:\/\/yunshangtulv.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/323","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yunshangtulv.com.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yunshangtulv.com.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yunshangtulv.com.cn\/index.php?rest_route=\/wp\/v2\/users\/111"}],"replies":[{"embeddable":true,"href":"https:\/\/yunshangtulv.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=323"}],"version-history":[{"count":0,"href":"https:\/\/yunshangtulv.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/323\/revisions"}],"wp:attachment":[{"href":"https:\/\/yunshangtulv.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=323"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yunshangtulv.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=323"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yunshangtulv.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=323"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}