{"id":8997,"date":"2010-03-25T04:02:00","date_gmt":"2010-03-25T04:02:00","guid":{"rendered":"http:\/\/melotopia.net\/b\/?p=8997"},"modified":"2010-03-25T04:02:00","modified_gmt":"2010-03-25T04:02:00","slug":"%ea%b7%b8%eb%a6%bc-%ea%b3%b5%eb%b6%80","status":"publish","type":"post","link":"http:\/\/melotopia.net\/b\/?p=8997","title":{"rendered":"\uadf8\ub9bc \uacf5\ubd80"},"content":{"rendered":"<div class=\"desc\">\n<div class=\"imageblock center\" style=\"text-align: center; clear: both;\">\n<img loading=\"lazy\" decoding=\"async\" alt=\"\" filemime=\"image\/png\" filename=\"sqrtplot.png\" height=\"363\" onclick=\"open_img('original\/175A95104BAADC6A67BEE3')\" src=\"image\/175A95104BAADC6A67BEE3\" style=\"cursor: pointer;max-width:100%;height:auto\" width=\"600\"\/>\n<\/div>\n<p>\n        \uc774 \ud55c\uc7a5\uc758 \uc0ac\uc9c4\uc774 \ubaa8\ub4e0 \uac83\uc744 \ub9d0\ud574\uc8fc\uace0 \uc788\ub2e4. sqrt\ub294 \uc81c\uacf1\uadfc, abs\ub294 \uc808\ub300\uac12 \ud568\uc218\ub2e4. \uc544\uc9c1 gnuplot\uc5d0\uc11c \uc800\uae30\uc5d0 \uc218\uc2dd\uc744 \uc5b4\ub5bb\uac8c \uc4f0\ub294\uc9c0 \uc798 \ubaa8\ub974\uaca0\ub2e4. (LaTeX\ub3c4 \uc124\uce58\ub97c \uc544\uc9c1 \uc548\ud574\uc11c&#8230;)<\/p>\n<p>        \uc544\ubb34\ud2bc.<\/p>\n<p>        $f(x)=\\sqrt{|x|-1}$\uacfc $g(x)=\\sqrt{|x-1|}$\uc758 \ucc28\uc774\ub294, x>1\uc778 \uc601\uc5ed\uc5d0\uc11c\ub294 \ub450 \ud568\uc218\uac00 \uac19\uc9c0\ub9cc x<1\uc778 \uc601\uc5ed\uc5d0\uc11c \ub2ec\ub77c\uc9c4\ub2e4.\n        \n\n\n        x<1\uc778 \uacbd\uc6b0, f(x) (\ube68\uac04\uc0c9) \ub294 $\\sqrt{-x-1}$\uc774\ub2e4. \uc54c\ub2e4\uc2dc\ud53c \uc81c\uacf1\uadfc \ud568\uc218\ub294 \uadf8 \uc548\uc5d0 \uc788\ub294 \ub188\uc774 \uc74c\uc218\uac00 \ub418\uba74 \uac12\uc774 \uc548\ub098\uc628\ub2e4. (\uc815\ud655\ud788\ub294 \ubcf5\uc18c\uc218 \uac12\uc744 \uac16\uac8c \ub41c\ub2e4. \uc544\ubb34\ud2bc \uc2e4\uc218\uac00 \uc544\ub2c8\ub77c\ub294\uac70...) \ub530\ub77c\uc11c -1\ubd80\ud130 1\uc0ac\uc774\uc5d0\ub294 \uadf8\ub798\ud504\uac00 \uc544\uc608 \uc874\uc7ac\ud558\uc9c0 \uc54a\uc744 \uac83\uc774\ub2e4. \uadf8\ub9ac\uace0 \ub2e4\uc2dc -1\uc774 \ub418\uc5b4\uc11c x<-1\uc778 \uc0c1\ud0dc\uac00 \ub418\uba74, \uc774\uc81c \uadf8\ub798\ud504\uac00 \ub2e4\uc2dc \uc0dd\uae34\ub2e4. \uc774 \ud568\uc218\ub294 x=0\uc5d0 \ub300\ud574\uc11c y\ucd95 \ub300\uce6d\uc774\ub2e4.\n        \n\n\n        g(x) (\ucd08\ub85d\uc0c9) \ub294 x<1\uc778 \uacbd\uc6b0\uc5d0 $\\sqrt{-x+1}$\uc774\ub2e4. \ub530\ub77c\uc11c \uc774 \ud568\uc218\uc5d0 \uc788\ub294 \uc81c\uacf1\uadfc \uc548\uc5d0\ub294 \uc74c\uc218\uac00 \uc62c \uc218 \uc5c6\ub2e4. \ub530\ub77c\uc11c 1\ubd80\ud130 \ub2e4\uc2dc \uadf8\ub798\ud504\uac00 \uadf8\ub824\uc9c0\uace0, \uc774 \uadf8\ub798\ud504\ub294 x=1\uc5d0 \ub300\ud574\uc11c y\ucd95 \ub300\uce6d\uc774 \ub41c\ub2e4.\n        \n\n\n        \uadf8\ub9bc \uadf8\ub824\ubcf4\uba74 \uc27d\ub2e4. \uc774\ub807\uac8c \uadf8\ub9bc\uc744 \uadf8\ub824\uc11c \ud568\uc218\ub97c \ubd84\uc11d\ud558\ub294 \ubd84\uc57c\ub97c \ud574\uc11d \uae30\ud558\ud559(Analytic Geometry)\uc774\ub77c\uace0 \ud55c\ub2e4.\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=1823\" 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>\uc774 \ud55c\uc7a5\uc758 \uc0ac\uc9c4\uc774 \ubaa8\ub4e0 \uac83\uc744 \ub9d0\ud574\uc8fc\uace0 \uc788\ub2e4. sqrt\ub294 \uc81c\uacf1\uadfc, abs\ub294 \uc808\ub300\uac12 \ud568\uc218\ub2e4. \uc544\uc9c1 gnuplot\uc5d0\uc11c \uc800\uae30\uc5d0 \uc218\uc2dd\uc744 \uc5b4\ub5bb\uac8c \uc4f0\ub294\uc9c0 \uc798 \ubaa8\ub974\uaca0\ub2e4. (LaTeX\ub3c4 \uc124\uce58\ub97c \uc544\uc9c1 \uc548\ud574\uc11c&#8230;) \uc544\ubb34\ud2bc. $f(x)=\\sqrt{|x|-1}$\uacfc $g(x)=\\sqrt{|x-1|}$\uc758 \ucc28\uc774\ub294, x>1\uc778 \uc601\uc5ed\uc5d0\uc11c\ub294 \ub450 \ud568\uc218\uac00 \uac19\uc9c0\ub9cc x<\/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-8997","post","type-post","status-publish","format-standard","hentry","category-academic"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p8o6gA-2l7","jetpack-related-posts":[],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/posts\/8997","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=8997"}],"version-history":[{"count":0,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/posts\/8997\/revisions"}],"wp:attachment":[{"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8997"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8997"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8997"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}