{"id":8145,"date":"2008-08-29T23:24:00","date_gmt":"2008-08-29T23:24:00","guid":{"rendered":"http:\/\/melotopia.net\/b\/?p=8145"},"modified":"2008-08-29T23:24:00","modified_gmt":"2008-08-29T23:24:00","slug":"%ec%a7%81%ec%84%a0%ec%9d%80-%ed%8f%89%eb%a9%b4%ec%9d%84-%eb%91%90%ea%b0%9c%eb%a1%9c-%eb%82%98%eb%88%88%eb%8b%a4","status":"publish","type":"post","link":"http:\/\/melotopia.net\/b\/?p=8145","title":{"rendered":"\uc9c1\uc120\uc740 \ud3c9\uba74\uc744 \ub450\uac1c\ub85c \ub098\ub208\ub2e4"},"content":{"rendered":"<div class=\"desc\">\n        \ud3c9\uba74 \uc704\uc5d0 \uc9c1\uc120\uc774 \ud558\ub098 \uc788\ub2e4\uace0 \ud558\uc790. \uadf8 \uc9c1\uc120\uc740 \ubb34\ud55c\ud788 \uba3c \uacf3\uc5d0\uc11c \uc2dc\uc791\ud558\uc5ec \ubb34\ud55c\ud788 \uba3c \uacf3\uc5d0\uc11c \ub05d\ub09c\ub2e4. \ub0ad\ub9cc\uc801\uc774\uc9c0 \uc54a\uc740\uac00? \uadf8\ub807\uac8c \uae38\uac8c \uc774\uc5b4\uc9c4 \uc9c1\uc120\uc740 \ud3c9\uba74\uc744 \ub450 \uc601\uc5ed\uc73c\ub85c \ub098\ub208\ub2e4. \uadf8\uac83\uc774 \ub0a8\uacfc \ubd81\uc774 \ub418\uc5c8\ub4e0, \uc88c\uc640 \uc6b0\uac00 \ub418\uc5c8\ub4e0 \ubb38\uc81c\ub294 \ub418\uc9c0 \uc54a\ub294\ub2e4. \ud3c9\uba74 \uc704\uc5d0 \uc788\ub294 \ubaa8\ub4e0 \uc810\uc740 \ub530\ub77c\uc11c \ud3c9\uba74\uc5d0 \uc788\ub294 \uc138\uac1c\uc758 \ubd80\ubd84\uc9d1\ud569 \uc911 \ud558\ub098\uc5d0 \ubc18\ub4dc\uc2dc \ud3ec\ud568\ub41c\ub2e4. \uc67c\ucabd\uc5d0 \uc788\uac70\ub098, \uc624\ub978\ucabd\uc5d0 \uc788\uac70\ub098, \ub610\ub294 \uc9c1\uc120 \uc704\uc5d0 \uc788\uac70\ub098. \uadf8\uc911\uc5d0 \uc5c6\ub2e4\uba74 \uc774 \uc810\uc740 \ud3c9\uba74 \uc704\uc5d0 \uc788\ub294 \uc810\uc774 \uc544\ub2c8\ub2e4.<\/p>\n<p>        \uc9c1\uc120\uc758 \ubc29\uc815\uc2dd\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ub2e4\uc74c\uacfc \uac19\ub2e4.<br \/>\n        <\/p>\n<blockquote><p>\n         $ax+by+c=0$\n        <\/p><\/blockquote>\n<p>        \uc774 \ubc29\uc815\uc2dd\uc5d0\ub2e4\uac00 \uc5b4\ub5a4 \uc810 (p,q)\uac00 \uc138 \uc9d1\ud569 \uc911 \uc5b4\ub514\uc5d0 \uc788\ub294\uc9c0 \uc54c\uc544\ubcf4\ub824\uba74?<br \/>\n        <br \/>\n        \uc774\ub807\uac8c \ud558\uba74 \ub420 \uac83 \uac19\ub2e4.<br \/>\n        <\/p>\n<blockquote><p>\n         $ap+bq+c < 0$ : \uc67c\ucabd\n         <br \/>\n         $ap+bq+c=0$ : \uc9c1\uc120 \uc704<br \/>\n         <br \/>\n         $ap+bq+c >$ 0 : \uc624\ub978\ucabd<br \/>\n         <br \/>\n         (\uc5ec\uae30\uc11c, \uc67c\ucabd\uc774\ub0d0 \uc624\ub978\ucabd\uc774\ub0d0\ub294 \uc804\ud600 \uc2dc\uac01\uc801\uc778 \uc774\ubbf8\uc9c0\uac00 \uc544\ub2c8\uba70, \ub300\ucda9 \ub9d0\ub85c \uc815\ud55c \uac12\uc774\ub2e4.)<br \/>\n         \n<\/p><\/blockquote>\n<p>        \ub530\ub77c\uc11c, \uc5b4\ub5a4 \uc810 \ub450\uac1c (p,q)\uc640 (r,s) \uac00 \uc788\uc744 \ub54c, \uc9c1\uc120\uc774 \ub098\ub204\ub294 \uc138 \uc601\uc5ed \uc911\uc5d0\uc11c \uac19\uc740 \ucabd\uc5d0 \uc788\ub294\uc9c0 \ud655\uc778\ud558\ub824\uba74 \ub2e4\uc74c\uacfc \uac19\uc774 \ud558\uba74 \ub41c\ub2e4.<br \/>\n        <\/p>\n<blockquote><p>\n         $sgn(ap+bq+c)*sgn(ar+br+c) > 0 $ : \uac19\uc740\ucabd<br \/>\n         <br \/>\n         $sgn(ap+bq+c)*sgn(ar+br+c) < 0 $: \ub2e4\ub978\ucabd\n         <br \/>\n         $sgn(ap+bq+c)*sgn(ar+br+c) = 0 $: \ub458 \uc911 \ud55c\ub188\uc774 \uc9c1\uc120 \uc704\uc5d0 \uc788\ub294 \ub188\uc774\ub2e4.<br \/>\n         \n<\/p><\/blockquote>\n<p>\n        \uadf8\ub798\uc11c, \uc77c\ub2e8 \ubca1\ud130\uac00 \uc8fc\uc5b4\uc84c\uc744 \ub54c \uc9c1\uc120\uc758 \ubc29\uc815\uc2dd\uc744 \ud55c\ubc88 \uc368 \ubcf4\uc790.<br \/>\n        <br \/>\n        \ubca1\ud130\uac00 (x1,y1), (x2,y2) \ub77c\uace0 \ud55c\ub2e4\uba74<br \/>\n        <\/p>\n<blockquote><p>\n         $y=\\frac{y2-y1}{x2-x1} (x1-x) +y1$<br \/>\n         <br \/>\n         \uc774 \uc218\uc2dd\uc744 $ax+by+c$ \ud615\ud0dc\ub85c \ubc14\uafb8\uba74<br \/>\n         <br \/>\n         $a=y2-y1$<br \/>\n         <br \/>\n         $b=x1-x2$<br \/>\n         <br \/>\n         $c=y1*x2-x1*y2$<br \/>\n         <br \/>\n         \uc774 \ub41c\ub2e4.\n        <\/p><\/blockquote>\n<p>        \uc774\uc81c, \uc0bc\uac01\ud615 \ub0b4\ubd80\uc5d0 \uc810\uc774 \uc788\ub294\uc9c0 \uc5c6\ub294\uc9c0 \ud310\uc815\ud558\ub294 \ud568\uc218\ub97c \ub9cc\ub4e4 \uc900\ube44\uac00 \ub05d\ub0ac\ub2e4.<br \/>\n        <\/p>\n<div style=\"width:100%;margin-top:30px;clear:both;height:30px\">\n<div style=\"width:31px;float:left;\">\n<a href=\"\/toolbar\/popup\/abuseReport\/?entryId=948\" onclick=\"window.open(this.href, 'tistoryThisBlogPopup', 'width=550, height=510, toolbar=no, menubar=no, status=no, scrollbars=no'); return false;\"><br \/>\n<img data-recalc-dims=\"1\" decoding=\"async\" alt=\"\uc2e0\uace0\" src=\"https:\/\/i0.wp.com\/t1.daumcdn.net\/tistory_admin\/static\/ico\/ico_spam_report.png\" style=\"border:0\"\/><br \/>\n<\/a>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\ud3c9\uba74 \uc704\uc5d0 \uc9c1\uc120\uc774 \ud558\ub098 \uc788\ub2e4\uace0 \ud558\uc790. \uadf8 \uc9c1\uc120\uc740 \ubb34\ud55c\ud788 \uba3c \uacf3\uc5d0\uc11c \uc2dc\uc791\ud558\uc5ec \ubb34\ud55c\ud788 \uba3c \uacf3\uc5d0\uc11c \ub05d\ub09c\ub2e4. \ub0ad\ub9cc\uc801\uc774\uc9c0 \uc54a\uc740\uac00? \uadf8\ub807\uac8c \uae38\uac8c \uc774\uc5b4\uc9c4 \uc9c1\uc120\uc740 \ud3c9\uba74\uc744 \ub450 \uc601\uc5ed\uc73c\ub85c \ub098\ub208\ub2e4. \uadf8\uac83\uc774 \ub0a8\uacfc \ubd81\uc774 \ub418\uc5c8\ub4e0, \uc88c\uc640 \uc6b0\uac00 \ub418\uc5c8\ub4e0 \ubb38\uc81c\ub294 \ub418\uc9c0 \uc54a\ub294\ub2e4. \ud3c9\uba74 \uc704\uc5d0 \uc788\ub294 \ubaa8\ub4e0 \uc810\uc740 \ub530\ub77c\uc11c \ud3c9\uba74\uc5d0 \uc788\ub294 \uc138\uac1c\uc758 \ubd80\ubd84\uc9d1\ud569 \uc911 \ud558\ub098\uc5d0 \ubc18\ub4dc\uc2dc \ud3ec\ud568\ub41c\ub2e4. \uc67c\ucabd\uc5d0 \uc788\uac70\ub098, \uc624\ub978\ucabd\uc5d0 \uc788\uac70\ub098, \ub610\ub294 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-8145","post","type-post","status-publish","format-standard","hentry","category-academic"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p8o6gA-27n","jetpack-related-posts":[],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/posts\/8145","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8145"}],"version-history":[{"count":0,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/posts\/8145\/revisions"}],"wp:attachment":[{"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8145"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8145"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}